Hecho general: 71726 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 71726 is an unremarkable number.
Trivia: 71726 is an unremarkable number.
Fecha histórica: May 18th is the day in 1993 that EU - riots in Nørrebro, Copenhagen caused by the approval of the four Danish exceptions in the Maastricht Treaty referendum.