397575672 has 64 divisors (see below), whose sum is σ = 1072354080. Its totient is φ = 122107392.

The previous prime is 397575671. The next prime is 397575683. The reversal of 397575672 is 276575793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397575671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272898 + ... + 274350.

Almost surely, 2^397575672 is an apocalyptic number.

It is an amenable number.

397575672 is an abundant number, since it is smaller than the sum of its proper divisors (674778408).

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

397575672 is a wasteful number, since it uses less digits than its factorization.

397575672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352 (or 2348 counting only the distinct ones).

The product of its digits is 2778300, while the sum is 51.

The square root of 397575672 is about 19939.2996867994. The cubic root of 397575672 is about 735.3147321638.

The spelling of 397575672 in words is "three hundred ninety-seven million, five hundred seventy-five thousand, six hundred seventy-two".