397789528 has 16 divisors (see below), whose sum is σ = 789729480. Its totient is φ = 187195008.

The previous prime is 397789507. The next prime is 397789541. The reversal of 397789528 is 825987793.

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, 1462326 + ... + 1462597.

Almost surely, 2^397789528 is an apocalyptic number.

It is an amenable number.

397789528 is a deficient number, since it is larger than the sum of its proper divisors (391939952).

397789528 is a wasteful number, since it uses less digits than its factorization.

397789528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924946 (or 2924942 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 58.

The square root of 397789528 is about 19944.6616416524. The cubic root of 397789528 is about 735.4465504915.

The spelling of 397789528 in words is "three hundred ninety-seven million, seven hundred eighty-nine thousand, five hundred twenty-eight".