172472177 has 16 divisors (see below), whose sum is σ = 184412160. Its totient is φ = 160843392.

The previous prime is 172472171. The next prime is 172472197. The reversal of 172472177 is 771274271.

It is a cyclic number.

It is not a de Polignac number, because 172472177 - 2⁸ = 172471921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172472177.

It is not an unprimeable number, because it can be changed into a prime (172472171) 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, 450128 + ... + 450510.

It is an arithmetic number, because the mean of its divisors is an integer number (11525760).

Almost surely, 2^172472177 is an apocalyptic number.

It is an amenable number.

172472177 is a deficient number, since it is larger than the sum of its proper divisors (11939983).

172472177 is a wasteful number, since it uses less digits than its factorization.

172472177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712.

The product of its digits is 38416, while the sum is 38.

The square root of 172472177 is about 13132.8662903420. The cubic root of 172472177 is about 556.6382103055.

The spelling of 172472177 in words is "one hundred seventy-two million, four hundred seventy-two thousand, one hundred seventy-seven".