172630680 has 64 divisors (see below), whose sum is σ = 518767200. Its totient is φ = 45957120.

The previous prime is 172630673. The next prime is 172630687. The reversal of 172630680 is 86036271.

172630680 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (172630673) and next prime (172630687).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172630687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121816 + ... + 123224.

Almost surely, 2^172630680 is an apocalyptic number.

172630680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172630680 is an abundant number, since it is smaller than the sum of its proper divisors (346136520).

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

172630680 is a wasteful number, since it uses less digits than its factorization.

172630680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444 (or 2440 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 172630680 is about 13138.8994972943. The cubic root of 172630680 is about 556.8086760852.

The spelling of 172630680 in words is "one hundred seventy-two million, six hundred thirty thousand, six hundred eighty".