172765413 has 16 divisors (see below), whose sum is σ = 259035840. Its totient is φ = 113787792.

The previous prime is 172765391. The next prime is 172765447. The reversal of 172765413 is 314567271.

It is a happy number.

172765413 is a `hidden beast` number, since 172 + 76 + 5 + 413 = 666.

It is not a de Polignac number, because 172765413 - 2⁵ = 172765381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172763413) 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, 36306 + ... + 40787.

It is an arithmetic number, because the mean of its divisors is an integer number (16189740).

Almost surely, 2^172765413 is an apocalyptic number.

It is an amenable number.

172765413 is a deficient number, since it is larger than the sum of its proper divisors (86270427).

172765413 is an equidigital number, since it uses as much as digits as its factorization.

172765413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77185 (or 77179 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 172765413 is about 13144.0257531701. The cubic root of 172765413 is about 556.9534958333.

The spelling of 172765413 in words is "one hundred seventy-two million, seven hundred sixty-five thousand, four hundred thirteen".