396023831 has 12 divisors (see below), whose sum is σ = 461024208. Its totient is φ = 339196032.

The previous prime is 396023807. The next prime is 396023863. The reversal of 396023831 is 138320693.

It is not a de Polignac number, because 396023831 - 2⁶ = 396023767 is a prime.

It is a super-2 number, since 2×396023831² = 313669749439833122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396023791 and 396023800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396023531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96830 + ... + 100836.

It is an arithmetic number, because the mean of its divisors is an integer number (38418684).

Almost surely, 2^396023831 is an apocalyptic number.

396023831 is a deficient number, since it is larger than the sum of its proper divisors (65000377).

396023831 is a wasteful number, since it uses less digits than its factorization.

396023831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6038 (or 6031 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 396023831 is about 19900.3475095286. The cubic root of 396023831 is about 734.3567766379.

The spelling of 396023831 in words is "three hundred ninety-six million, twenty-three thousand, eight hundred thirty-one".