397472874 has 16 divisors (see below), whose sum is σ = 796104480. Its totient is φ = 132297840.

The previous prime is 397472851. The next prime is 397472891. The reversal of 397472874 is 478274793.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43789 + ... + 52080.

It is an arithmetic number, because the mean of its divisors is an integer number (49756530).

Almost surely, 2^397472874 is an apocalyptic number.

397472874 is an abundant number, since it is smaller than the sum of its proper divisors (398631606).

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

397472874 is a wasteful number, since it uses less digits than its factorization.

397472874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96565.

The product of its digits is 2370816, while the sum is 51.

The square root of 397472874 is about 19936.7217465661. The cubic root of 397472874 is about 735.2513518609.

The spelling of 397472874 in words is "three hundred ninety-seven million, four hundred seventy-two thousand, eight hundred seventy-four".