Fait général: 9378 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 9378 is a value of n for which 4n and 5n together use each digit exactly once.
Culture générale: 9378 is an uninteresting number.
Date historique: September 3rd is the day in 1951 that the first long-running American television soap opera, Search for Tomorrow, airs its first episode on the CBS network.