Fatto matematico: 9306 is a value of n for which 3n and 5n together use each digit exactly once.
Trivia: 9306 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: June 23rd is the day in 1985 that a terrorist bomb aboard Air India flight 182 brings the Boeing 747 down off the coast of Ireland killing all 329 aboard.