Fait général: 8913 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 8913 is the maximum value of n so that there exist 4 denominations of stamps so that every postage from 1 to n can be paid for with at most 27 stamps.
Culture générale: 8913 is an unremarkable number.
Date historique: May 26th is the day in 1991 that Zviad Gamsakhurdia becomes the first elected President of the Republic of Georgia in the post-Soviet era.