Fait général: 23628 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 23628 is a boring number.
Culture générale: 23628 is an uninteresting number.
Date historique: September 8th is the day in 1831 that William IV and Adelaide of Saxe-Meiningen are crowned King and Queen of the United Kingdom of Great Britain and Ireland.