172580379 has 16 divisors (see below), whose sum is σ = 251504640. Its totient is φ = 104791680.

The previous prime is 172580351. The next prime is 172580389. The reversal of 172580379 is 973085271.

172580379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172580379 - 2¹⁹ = 172056091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172580379.

It is not an unprimeable number, because it can be changed into a prime (172580389) 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, 52999 + ... + 56160.

It is an arithmetic number, because the mean of its divisors is an integer number (15719040).

Almost surely, 2^172580379 is an apocalyptic number.

172580379 is a deficient number, since it is larger than the sum of its proper divisors (78924261).

172580379 is a wasteful number, since it uses less digits than its factorization.

172580379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109210.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 172580379 is about 13136.9851564200. The cubic root of 172580379 is about 556.7545899982.

The spelling of 172580379 in words is "one hundred seventy-two million, five hundred eighty thousand, three hundred seventy-nine".