Fatto generale: 9315 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 9315 is a value of n for which 2n and 3n together use each digit exactly once.
Trivia: 9315 is an uninteresting number.
Data storica: July 2nd is the day in 1881 that Charles J. Guiteau shoots and fatally wounds U.S. President James Garfield, who eventually dies from an infection on September 19.