397390562 has 8 divisors (see below), whose sum is σ = 596184300. Its totient is φ = 198662464.

The previous prime is 397390537. The next prime is 397390663. The reversal of 397390562 is 265093793.

It can be written as a sum of positive squares in 2 ways, for example, as 365230321 + 32160241 = 19111^2 + 5671^2 .

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

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, 3614 + ... + 28422.

Almost surely, 2^397390562 is an apocalyptic number.

397390562 is a deficient number, since it is larger than the sum of its proper divisors (198793738).

397390562 is a wasteful number, since it uses less digits than its factorization.

397390562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32820.

The product of its (nonzero) digits is 306180, while the sum is 44.

The square root of 397390562 is about 19934.6573083161. The cubic root of 397390562 is about 735.2005943616.

The spelling of 397390562 in words is "three hundred ninety-seven million, three hundred ninety thousand, five hundred sixty-two".