396902664 has 24 divisors (see below), whose sum is σ = 1074944910. Its totient is φ = 132300864.

The previous prime is 396902657. The next prime is 396902683. The reversal of 396902664 is 466209693.

It can be written as a sum of positive squares in only one way, i.e., 232806564 + 164096100 = 15258^2 + 12810^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2756197 + ... + 2756340.

Almost surely, 2^396902664 is an apocalyptic number.

It is an amenable number.

396902664 is an abundant number, since it is smaller than the sum of its proper divisors (678042246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396902664 is a wasteful number, since it uses less digits than its factorization.

396902664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5512549 (or 5512542 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 396902664 is about 19922.4161185334. The cubic root of 396902664 is about 734.8995892264.

The spelling of 396902664 in words is "three hundred ninety-six million, nine hundred two thousand, six hundred sixty-four".