57872109 has 16 divisors (see below), whose sum is σ = 79506944. Its totient is φ = 37422000.

The previous prime is 57872083. The next prime is 57872123. The reversal of 57872109 is 90127875.

It is not a de Polignac number, because 57872109 - 2⁵ = 57872077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57872179) 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, 17994 + ... + 20964.

It is an arithmetic number, because the mean of its divisors is an integer number (4969184).

Almost surely, 2^57872109 is an apocalyptic number.

It is an amenable number.

57872109 is a deficient number, since it is larger than the sum of its proper divisors (21634835).

57872109 is a wasteful number, since it uses less digits than its factorization.

57872109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 57872109 is about 7607.3720166691. The cubic root of 57872109 is about 386.8029430308.

The spelling of 57872109 in words is "fifty-seven million, eight hundred seventy-two thousand, one hundred nine".