Fait mathématique: 89864 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 89864 is an uninteresting number.
Date historique: January 14th is the day in 2011 that Stampede near Sabarimala – 104 devotees killed and several others injured in a stampede at Uppupara in Idukki district.