Fait mathématique: 4827 is an uninteresting number.
Culture générale: 4827 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: March 19th is the day in 2004 that a Swedish DC-3 shot down by a Russian MiG-15 in 1952 over the Baltic Sea is finally recovered after years of work.