Fatto matematico: 4734 is the sum of its proper divisors that contain the digit 7.
Trivia: 4734 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: December 16th is the day in 755 that an Lushan revolts against Chancellor Yang Guozhong at Fanyang, initiating the An Shi Rebellion during the Tang Dynasty of China.