74764731 has 16 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 48891648.

The previous prime is 74764721. The next prime is 74764747. The reversal of 74764731 is 13746747.

It is not a de Polignac number, because 74764731 - 2⁵ = 74764699 is a prime.

It is a super-2 number, since 2×74764731² = 11179530003004722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74764731.

It is not an unprimeable number, because it can be changed into a prime (74764721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38635 + ... + 40523.

It is an arithmetic number, because the mean of its divisors is an integer number (6350400).

Almost surely, 2^74764731 is an apocalyptic number.

74764731 is a deficient number, since it is larger than the sum of its proper divisors (26841669).

74764731 is a wasteful number, since it uses less digits than its factorization.

74764731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138.

The product of its digits is 98784, while the sum is 39.

The square root of 74764731 is about 8646.6601066539. The cubic root of 74764731 is about 421.2749072905.

The spelling of 74764731 in words is "seventy-four million, seven hundred sixty-four thousand, seven hundred thirty-one".