Fait mathématique: 6940 is the sum of its proper divisors that contain the digit 3.
Culture générale: 6940 is a boring number.
Date historique: December 31st is the day in 1229 that James I of Aragon the Conqueror enters Medina Mayurqa (now known as Palma, Spain) thus consummating the Christian reconquest of the island of Majorca.