397958571 has 12 divisors (see below), whose sum is σ = 584253280. Its totient is φ = 260956080.

The previous prime is 397958567. The next prime is 397958579. The reversal of 397958571 is 175859793.

It is not a de Polignac number, because 397958571 - 2² = 397958567 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397958579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361891 + ... + 362988.

Almost surely, 2^397958571 is an apocalyptic number.

397958571 is a deficient number, since it is larger than the sum of its proper divisors (186294709).

397958571 is a wasteful number, since it uses less digits than its factorization.

397958571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724946 (or 724943 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 54.

The square root of 397958571 is about 19948.8989921750. The cubic root of 397958571 is about 735.5507131840.

The spelling of 397958571 in words is "three hundred ninety-seven million, nine hundred fifty-eight thousand, five hundred seventy-one".