74310731 has 16 divisors (see below), whose sum is σ = 84261600. Its totient is φ = 64915200.

The previous prime is 74310727. The next prime is 74310739. The reversal of 74310731 is 13701347.

It is a cyclic number.

It is not a de Polignac number, because 74310731 - 2² = 74310727 is a prime.

It is a super-2 number, since 2×74310731² = 11044169483508722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74310731.

It is not an unprimeable number, because it can be changed into a prime (74310739) 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, 89225 + ... + 90053.

It is an arithmetic number, because the mean of its divisors is an integer number (5266350).

Almost surely, 2^74310731 is an apocalyptic number.

74310731 is a deficient number, since it is larger than the sum of its proper divisors (9950869).

74310731 is a wasteful number, since it uses less digits than its factorization.

74310731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 74310731 is about 8620.3672195563. The cubic root of 74310731 is about 420.4204614003.

The spelling of 74310731 in words is "seventy-four million, three hundred ten thousand, seven hundred thirty-one".