Fait général: 21472 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 21472 is a boring number.
Culture générale: 21472 is a boring number.
Date historique: October 14th is the day in 1898 that the steamer ship SS Mohegan sinks after impacting the Manacles near Cornwall, United Kingdom, killing 106.