396495931 has 8 divisors (see below), whose sum is σ = 427639520. Its totient is φ = 365444352.

The previous prime is 396495899. The next prime is 396495937. The reversal of 396495931 is 139594693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 396495931 - 2⁵ = 396495899 is a prime.

It is a super-2 number, since 2×396495931² = 314418046599113522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396495937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13911 + ... + 31408.

It is an arithmetic number, because the mean of its divisors is an integer number (53454940).

Almost surely, 2^396495931 is an apocalyptic number.

396495931 is a deficient number, since it is larger than the sum of its proper divisors (31143589).

396495931 is a wasteful number, since it uses less digits than its factorization.

396495931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46005.

The product of its digits is 787320, while the sum is 49.

The square root of 396495931 is about 19912.2055784888. The cubic root of 396495931 is about 734.6484696584.

The spelling of 396495931 in words is "three hundred ninety-six million, four hundred ninety-five thousand, nine hundred thirty-one".