172901868 has 24 divisors (see below), whose sum is σ = 403834368. Its totient is φ = 57577296.

The previous prime is 172901867. The next prime is 172901873. The reversal of 172901868 is 868109271.

172901868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×172901868⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (172901863) 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, 6705 + ... + 19767.

It is an arithmetic number, because the mean of its divisors is an integer number (16826432).

Almost surely, 2^172901868 is an apocalyptic number.

It is an amenable number.

172901868 is an abundant number, since it is smaller than the sum of its proper divisors (230932500).

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

172901868 is a wasteful number, since it uses less digits than its factorization.

172901868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14173 (or 14171 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 172901868 is about 13149.2154899066. The cubic root of 172901868 is about 557.1000897763.

The spelling of 172901868 in words is "one hundred seventy-two million, nine hundred one thousand, eight hundred sixty-eight".