Fait général: 19837 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 19837 is a boring number.
Culture générale: 19837 is an unremarkable number.
Date historique: April 23rd is the day in 1955 that the Canadian Labour Congress is formed by the merger of the Trades and Labour Congress of Canada and the Canadian Congress of Labour.