397873488 has 20 divisors (see below), whose sum is σ = 1027839968. Its totient is φ = 132624480.

The previous prime is 397873477. The next prime is 397873493. The reversal of 397873488 is 884378793.

It is a super-2 number, since 2×397873488² = 316606624906572288, which contains 22 as substring.

It is a congruent number.

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, 4144468 + ... + 4144563.

Almost surely, 2^397873488 is an apocalyptic number.

It is an amenable number.

397873488 is an abundant number, since it is smaller than the sum of its proper divisors (629966480).

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

397873488 is a wasteful number, since it uses less digits than its factorization.

397873488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8289042 (or 8289036 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 57.

The square root of 397873488 is about 19946.7663544746. The cubic root of 397873488 is about 735.4982895345.

The spelling of 397873488 in words is "three hundred ninety-seven million, eight hundred seventy-three thousand, four hundred eighty-eight".