397064835 has 80 divisors (see below), whose sum is σ = 762439392. Its totient is φ = 196992000.

The previous prime is 397064827. The next prime is 397064851. The reversal of 397064835 is 538460793.

It is not a de Polignac number, because 397064835 - 2³ = 397064827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 695100 + ... + 695670.

Almost surely, 2^397064835 is an apocalyptic number.

397064835 is a deficient number, since it is larger than the sum of its proper divisors (365374557).

397064835 is a wasteful number, since it uses less digits than its factorization.

397064835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 397064835 is about 19926.4857664366. The cubic root of 397064835 is about 734.9996668053. Note that the first 3 decimals are identical.

The spelling of 397064835 in words is "three hundred ninety-seven million, sixty-four thousand, eight hundred thirty-five".