172076864 has 14 divisors (see below), whose sum is σ = 341465154. Its totient is φ = 86038400.

The previous prime is 172076851. The next prime is 172076887. The reversal of 172076864 is 468670271.

It can be written as a sum of positive squares in only one way, i.e., 120121600 + 51955264 = 10960^2 + 7208^2 .

It is a super-2 number, since 2×172076864² = 59220894248148992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344287 + ... + 1344414.

Almost surely, 2^172076864 is an apocalyptic number.

It is an amenable number.

172076864 is a deficient number, since it is larger than the sum of its proper divisors (169388290).

172076864 is an equidigital number, since it uses as much as digits as its factorization.

172076864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688713 (or 2688703 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 172076864 is about 13117.8071338162. The cubic root of 172076864 is about 556.2126060963.

The spelling of 172076864 in words is "one hundred seventy-two million, seventy-six thousand, eight hundred sixty-four".