Fatto matematico: 2697 is the smallest value of n for which n and 5n together use each digit 1-9 exactly once.
Trivia: 2697 is an uninteresting number.
Data storica: May 20th is the day in 1896 that the six ton chandelier of the Palais Garnier falls on the crowd below resulting in the death of one and the injury of many others.