172864608 has 48 divisors (see below), whose sum is σ = 518595840. Its totient is φ = 49389696.

The previous prime is 172864567. The next prime is 172864609. The reversal of 172864608 is 806468271.

172864608 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 172864608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172864609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127948 + ... + 129291.

It is an arithmetic number, because the mean of its divisors is an integer number (10804080).

Almost surely, 2^172864608 is an apocalyptic number.

It is an amenable number.

172864608 is an abundant number, since it is smaller than the sum of its proper divisors (345731232).

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

172864608 is a wasteful number, since it uses less digits than its factorization.

172864608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257259 (or 257251 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 172864608 is about 13147.7985990051. The cubic root of 172864608 is about 557.0600689235.

The spelling of 172864608 in words is "one hundred seventy-two million, eight hundred sixty-four thousand, six hundred eight".