397525794 has 16 divisors (see below), whose sum is σ = 822467520. Its totient is φ = 127939280.

The previous prime is 397525789. The next prime is 397525819. The reversal of 397525794 is 497525793.

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, 1142142 + ... + 1142489.

It is an arithmetic number, because the mean of its divisors is an integer number (51404220).

Almost surely, 2^397525794 is an apocalyptic number.

397525794 is an abundant number, since it is smaller than the sum of its proper divisors (424941726).

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

397525794 is a wasteful number, since it uses less digits than its factorization.

397525794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284665.

The product of its digits is 2381400, while the sum is 51.

The square root of 397525794 is about 19938.0489015350. The cubic root of 397525794 is about 735.2839811524.

Subtracting 397525794 from its reverse (497525793), we obtain a palindrome (99999999).

The spelling of 397525794 in words is "three hundred ninety-seven million, five hundred twenty-five thousand, seven hundred ninety-four".