172227894 has 32 divisors (see below), whose sum is σ = 363742080. Its totient is φ = 54214272.

The previous prime is 172227883. The next prime is 172227907. The reversal of 172227894 is 498722271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36177 + ... + 40659.

It is an arithmetic number, because the mean of its divisors is an integer number (11366940).

Almost surely, 2^172227894 is an apocalyptic number.

172227894 is an abundant number, since it is smaller than the sum of its proper divisors (191514186).

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

172227894 is a wasteful number, since it uses less digits than its factorization.

172227894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4844.

The product of its digits is 112896, while the sum is 42.

The square root of 172227894 is about 13123.5625498567. The cubic root of 172227894 is about 556.3752857718.

The spelling of 172227894 in words is "one hundred seventy-two million, two hundred twenty-seven thousand, eight hundred ninety-four".