Fatto generale: 89039 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 89039 is an unremarkable number.
Trivia: 89039 is a boring number.
Data storica: October 12th is the day in 1793 that the cornerstone of Old East, the oldest state university building in the United States, is laid on the campus of the University of North Carolina.