172955028 has 24 divisors (see below), whose sum is σ = 406274400. Its totient is φ = 57264160.

The previous prime is 172955023. The next prime is 172955033. The reversal of 172955028 is 820559271.

It is an interprime number because it is at equal distance from previous prime (172955023) and next prime (172955033).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172955023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46578 + ... + 50153.

It is an arithmetic number, because the mean of its divisors is an integer number (16928100).

Almost surely, 2^172955028 is an apocalyptic number.

It is an amenable number.

172955028 is an abundant number, since it is smaller than the sum of its proper divisors (233319372).

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

172955028 is a wasteful number, since it uses less digits than its factorization.

172955028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96887 (or 96885 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 172955028 is about 13151.2367479260. The cubic root of 172955028 is about 557.1571788185.

The spelling of 172955028 in words is "one hundred seventy-two million, nine hundred fifty-five thousand, twenty-eight".