397676402 has 18 divisors (see below), whose sum is σ = 609345903. Its totient is φ = 194650204.

The previous prime is 397676369. The next prime is 397676413. The reversal of 397676402 is 204676793.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 198838201 + 198838201 = 14101^2 + 14101^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=14101.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1663799 + ... + 1664037.

Almost surely, 2^397676402 is an apocalyptic number.

397676402 is a deficient number, since it is larger than the sum of its proper divisors (211669501).

397676402 is an frugal number, since it uses more digits than its factorization.

397676402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 397676402 is about 19941.8254430230. The cubic root of 397676402 is about 735.3768268406.

The spelling of 397676402 in words is "three hundred ninety-seven million, six hundred seventy-six thousand, four hundred two".