397500164 has 12 divisors (see below), whose sum is σ = 695897244. Its totient is φ = 198672384.

The previous prime is 397500161. The next prime is 397500179. The reversal of 397500164 is 461005793.

It can be written as a sum of positive squares in 2 ways, for example, as 227406400 + 170093764 = 15080^2 + 13042^2 .

It is not an unprimeable number, because it can be changed into a prime (397500161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7037 + ... + 29060.

It is an arithmetic number, because the mean of its divisors is an integer number (57991437).

Almost surely, 2^397500164 is an apocalyptic number.

It is an amenable number.

397500164 is a deficient number, since it is larger than the sum of its proper divisors (298397080).

397500164 is a wasteful number, since it uses less digits than its factorization.

397500164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38854 (or 38852 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 397500164 is about 19937.4061502493. The cubic root of 397500164 is about 735.2681786278.

The spelling of 397500164 in words is "three hundred ninety-seven million, five hundred thousand, one hundred sixty-four".