Mr. Hackerman also donated $250,000, the largest gift in the history of the Baltimore City Community College Foundation, in December 2001. The money helps finance no-interest student loans.
Mr. Hackerman earned a reputation for his broad ambitions for Baltimore.
His philanthropy included the Hackerman House, which houses the Walters Art Museum's Asian collection.
"He had a true civic vision for Baltimore," said the Walters director, Julia Marciari Alexander. "His personal ethics showed themselves in the quality and excellence of his works."
Neil Meltzer, president of LifeBridge Health, said that Mr. Hackerman assisted the Sinai Hospital campus with a residence for children being treated for serious ailments. The home, the Hackerman-Patz House, allows parents to stay with young patients.
"He was one of the most generous donors in the history of LifeBridge," Mr. Meltzer said.
"His motto was God, then family, then Whiting-Turner," said his daughter, Nancy Lois Hackerman of Pikesville.
He kept offices in Towson and housed his collection of rare U.S. maps in a room at an East Pratt Street office building.
Mr. Fry said one of Mr. Hackerman's dreams — rebuilding a new civic arena in the Inner Harbor with a hotel and enlarged convention center — proved elusive.
"He hoped he could find a private-sector contributor for the arena part of the project. He was consistently looking for someone," Mr. Fry said. "His challenge was how to get that private-sector piece."
Others recalled his role in the state.
"He certainly was Maryland's 20th-century industrial giant and philanthropist," said Helen D. Bentley, a former member of Congress.
Mr. Hackerman was influential in political circles as well. He was a close political ally of William Donald Schaefer, the former mayor and governor.
Winning a series of contracts, Mr. Hackerman's firm teamed with then-Mayor Schaefer to help transform Baltimore, including building the Convention Center, Harborplace and the aquarium.
And when plans to honor Mr. Schaefer at Harborplace with a statue were in jeopardy, Mr. Hackerman stepped in to pay for the memorial.
In 2004, Mr. Hackerman became embroiled in a controversy when then-Gov. Robert L. Ehrlich Jr. wanted to sell him state-preserved forestland in a secret deal that would have netted him millions of dollars in tax breaks. Mr. Hackerman later said it was not his idea to keep his identity secret and that he had planned to partially develop the land.
"One would never be aware of Mr. Hackerman's financial and political power in his role as my patient 45 years ago at Sinai Hospital," said Herschel Budlow, a physical therapist. "He could not have been nicer to all in the rehabilitation center — from the janitor, the receptionist, the technicians. ... He could be described as courtly, but better to say — he was a true mensch ... despite being in considerable discomfort. There was always a smile on his face, and he had time for everyone."
Services will be held at noon Tuesday at Beth Tfiloh Congregation, 3300 Old Court Road in Pikesville.
The family will also receive visitors from noon to 6 p.m. Sunday, also at Beth Tfiloh.
In addition to his daughter, Mr. Hackerman is survived by his wife of 72 years, the former Lillian Patz; a son, Steven Alan Mordecai Hackerman; five grandchildren; and 23 great-grandchildren.
Baltimore Sun reporter Ian Duncan contributed to this article.