57078923 has 8 divisors (see below), whose sum is σ = 62544960. Its totient is φ = 51659080.

The previous prime is 57078913. The next prime is 57078941. The reversal of 57078923 is 32987075.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57078923 - 2⁸ = 57078667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57078913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8933 + ... + 13926.

It is an arithmetic number, because the mean of its divisors is an integer number (7818120).

Almost surely, 2^57078923 is an apocalyptic number.

57078923 is a deficient number, since it is larger than the sum of its proper divisors (5466037).

57078923 is a wasteful number, since it uses less digits than its factorization.

57078923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23097.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 57078923 is about 7555.0594306068. The cubic root of 57078923 is about 385.0276541670.

The spelling of 57078923 in words is "fifty-seven million, seventy-eight thousand, nine hundred twenty-three".