44497

This number is a prime.

M(44497) was once the largest known prime. It contains 13395 decimal digits and was discovered by David Slowinski and Harry L. Nelson. [Dobb]

The last term in the sequence which contains Mersenne prime exponents that are less than 50000 and starts with 4 (4253, 4423, 44497). Note that 4253 starts with one 4, and 4423 starts with two 4's, and 44497 starts with three 4's. [Jeong]

The Mersenne prime 2^44497-1 is a self-number. Note that among all 51 known Mersenne primes, only 7 of them are self, and the first three Mersenne primes 3, 7, and 31 are self-numbers. [Kontobesar]