396961924 has 12 divisors (see below), whose sum is σ = 695431324. Its totient is φ = 198267264.

The previous prime is 396961919. The next prime is 396961931. The reversal of 396961924 is 429169693.

It can be written as a sum of positive squares in 2 ways, for example, as 113039424 + 283922500 = 10632^2 + 16850^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49209 + ... + 56704.

Almost surely, 2^396961924 is an apocalyptic number.

It is an amenable number.

396961924 is a deficient number, since it is larger than the sum of its proper divisors (298469400).

396961924 is a wasteful number, since it uses less digits than its factorization.

396961924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106854 (or 106852 counting only the distinct ones).

The product of its digits is 629856, while the sum is 49.

The square root of 396961924 is about 19923.9033324296. The cubic root of 396961924 is about 734.9361624103.

The spelling of 396961924 in words is "three hundred ninety-six million, nine hundred sixty-one thousand, nine hundred twenty-four".