Mathematical fact: 2700 is the product of the first 5 triangular numbers.
Trivia: 2700 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Historical date: May 23rd is the day in 1967 that Egypt closes the Straits of Tiran and blockades the port of Eilat at the northern end of the Gulf of Aqaba to Israeli shipping.