397007235 has 24 divisors (see below), whose sum is σ = 710346624. Its totient is φ = 204906240.

The previous prime is 397007183. The next prime is 397007251. The reversal of 397007235 is 532700793.

It is a happy number.

It is not a de Polignac number, because 397007235 - 2²⁰ = 395958659 is a prime.

It is a super-2 number, since 2×397007235² = 315229489284690450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 397007235.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140902 + ... + 143691.

It is an arithmetic number, because the mean of its divisors is an integer number (29597776).

Almost surely, 2^397007235 is an apocalyptic number.

397007235 is a deficient number, since it is larger than the sum of its proper divisors (313339389).

397007235 is a wasteful number, since it uses less digits than its factorization.

397007235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284635 (or 284632 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 397007235 is about 19925.0404014647. The cubic root of 397007235 is about 734.9641243075.

The spelling of 397007235 in words is "three hundred ninety-seven million, seven thousand, two hundred thirty-five".