397937475 has 96 divisors (see below), whose sum is σ = 796824000. Its totient is φ = 193536000.

The previous prime is 397937473. The next prime is 397937509. The reversal of 397937475 is 574739793.

It is a happy number.

It is not a de Polignac number, because 397937475 - 2¹ = 397937473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397937473) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 886051 + ... + 886499.

It is an arithmetic number, because the mean of its divisors is an integer number (8300250).

Almost surely, 2^397937475 is an apocalyptic number.

397937475 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

397937475 is a wasteful number, since it uses less digits than its factorization.

397937475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 571 counting only the distinct ones).

The product of its digits is 5000940, while the sum is 54.

The square root of 397937475 is about 19948.3702341820. The cubic root of 397937475 is about 735.5377156401.

The spelling of 397937475 in words is "three hundred ninety-seven million, nine hundred thirty-seven thousand, four hundred seventy-five".