172869212 has 12 divisors (see below), whose sum is σ = 304271016. Its totient is φ = 85934640.

The previous prime is 172869197. The next prime is 172869223. The reversal of 172869212 is 212968271.

172869212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124214 + ... + 125597.

It is an arithmetic number, because the mean of its divisors is an integer number (25355918).

Almost surely, 2^172869212 is an apocalyptic number.

It is an amenable number.

172869212 is a deficient number, since it is larger than the sum of its proper divisors (131401804).

172869212 is a wasteful number, since it uses less digits than its factorization.

172869212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249988 (or 249986 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 172869212 is about 13147.9736841842. The cubic root of 172869212 is about 557.0650143773.

The spelling of 172869212 in words is "one hundred seventy-two million, eight hundred sixty-nine thousand, two hundred twelve".