397589644 has 12 divisors (see below), whose sum is σ = 700390768. Its totient is φ = 197478000.

The previous prime is 397589641. The next prime is 397589651. The reversal of 397589644 is 446985793.

It is not an unprimeable number, because it can be changed into a prime (397589641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328527 + ... + 329734.

Almost surely, 2^397589644 is an apocalyptic number.

It is an amenable number.

397589644 is a deficient number, since it is larger than the sum of its proper divisors (302801124).

397589644 is a wasteful number, since it uses less digits than its factorization.

397589644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658416 (or 658414 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The square root of 397589644 is about 19939.6500470796. The cubic root of 397589644 is about 735.3233457837.

The spelling of 397589644 in words is "three hundred ninety-seven million, five hundred eighty-nine thousand, six hundred forty-four".