396574731 has 16 divisors (see below), whose sum is σ = 671449600. Its totient is φ = 226614024.

The previous prime is 396574727. The next prime is 396574811. The reversal of 396574731 is 137475693.

396574731 is a `hidden beast` number, since 3 + 9 + 6 + 574 + 73 + 1 = 666.

It is not a de Polignac number, because 396574731 - 2² = 396574727 is a prime.

It is a super-2 number, since 2×396574731² = 314543034535444722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396574721) 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, 1048951 + ... + 1049328.

It is an arithmetic number, because the mean of its divisors is an integer number (41965600).

Almost surely, 2^396574731 is an apocalyptic number.

396574731 is a deficient number, since it is larger than the sum of its proper divisors (274874869).

396574731 is a wasteful number, since it uses less digits than its factorization.

396574731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098295 (or 2098289 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 396574731 is about 19914.1841660662. The cubic root of 396574731 is about 734.6971346932.

The spelling of 396574731 in words is "three hundred ninety-six million, five hundred seventy-four thousand, seven hundred thirty-one".