Fatto generale: 10689 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 10689 is an uninteresting number.
Trivia: 10689 is a boring number.
Data storica: April 6th is the day in 1903 that the Kishinev pogrom in Kishinev (Bessarabia) begins, forcing tens of thousands of Jews to later seek refuge in Israel and the Western world.