172664734 has 16 divisors (see below), whose sum is σ = 285949440. Its totient is φ = 77537560.

The previous prime is 172664719. The next prime is 172664773. The reversal of 172664734 is 437466271.

It is a super-2 number, since 2×172664734² = 59626220734581512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45454 + ... + 49105.

It is an arithmetic number, because the mean of its divisors is an integer number (17871840).

Almost surely, 2^172664734 is an apocalyptic number.

172664734 is a deficient number, since it is larger than the sum of its proper divisors (113284706).

172664734 is a wasteful number, since it uses less digits than its factorization.

172664734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94655.

The product of its digits is 169344, while the sum is 40.

The square root of 172664734 is about 13140.1953562342. The cubic root of 172664734 is about 556.8452866421.

The spelling of 172664734 in words is "one hundred seventy-two million, six hundred sixty-four thousand, seven hundred thirty-four".