172712080 has 40 divisors (see below), whose sum is σ = 410902272. Its totient is φ = 67476864.

The previous prime is 172712077. The next prime is 172712093. The reversal of 172712080 is 80217271.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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, 21664 + ... + 28543.

Almost surely, 2^172712080 is an apocalyptic number.

172712080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172712080 is an abundant number, since it is smaller than the sum of its proper divisors (238190192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172712080 is a wasteful number, since it uses less digits than its factorization.

172712080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50263 (or 50257 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 172712080 is about 13141.9968041390. The cubic root of 172712080 is about 556.8961790796.

The spelling of 172712080 in words is "one hundred seventy-two million, seven hundred twelve thousand, eighty".