172965087 has 12 divisors (see below), whose sum is σ = 250080480. Its totient is φ = 115198368.

The previous prime is 172965053. The next prime is 172965097. The reversal of 172965087 is 780569271.

It is not a de Polignac number, because 172965087 - 2¹⁴ = 172948703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172965007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1114 + ... + 18632.

It is an arithmetic number, because the mean of its divisors is an integer number (20840040).

Almost surely, 2^172965087 is an apocalyptic number.

172965087 is a deficient number, since it is larger than the sum of its proper divisors (77115393).

172965087 is a wasteful number, since it uses less digits than its factorization.

172965087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18622 (or 18619 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 172965087 is about 13151.6191778807. The cubic root of 172965087 is about 557.1679799604.

The spelling of 172965087 in words is "one hundred seventy-two million, nine hundred sixty-five thousand, eighty-seven".