397137627 has 16 divisors (see below), whose sum is σ = 590599680. Its totient is φ = 263747016.

The previous prime is 397137617. The next prime is 397137649. The reversal of 397137627 is 726731793.

397137627 is a `hidden beast` number, since 3 + 9 + 7 + 13 + 7 + 627 = 666.

It is not a de Polignac number, because 397137627 - 2⁸ = 397137371 is a prime.

It is a super-2 number, since 2×397137627² = 315436589558382258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (397137607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20863 + ... + 35064.

It is an arithmetic number, because the mean of its divisors is an integer number (36912480).

Almost surely, 2^397137627 is an apocalyptic number.

397137627 is a deficient number, since it is larger than the sum of its proper divisors (193462053).

397137627 is a wasteful number, since it uses less digits than its factorization.

397137627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56199 (or 56193 counting only the distinct ones).

The product of its digits is 333396, while the sum is 45.

The square root of 397137627 is about 19928.3121964706. The cubic root of 397137627 is about 735.0445787206.

The spelling of 397137627 in words is "three hundred ninety-seven million, one hundred thirty-seven thousand, six hundred twenty-seven".