General fact: 696 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 696 is a palindrome n so that n(n+8) is also palindromic.
Trivia: 696 is a boring number.
Historical date: November 26th is the day in 1918 that the Podgorica Assembly votes for "union of the people", declaring assimilation into the Kingdom of Serbia.