57778923 has 8 divisors (see below), whose sum is σ = 77833168. Its totient is φ = 38121984.

The previous prime is 57778913. The next prime is 57778927. The reversal of 57778923 is 32987775.

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

It is not a de Polignac number, because 57778923 - 2⁶ = 57778859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57778927) 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, 98986 + ... + 99567.

It is an arithmetic number, because the mean of its divisors is an integer number (9729146).

Almost surely, 2^57778923 is an apocalyptic number.

57778923 is a deficient number, since it is larger than the sum of its proper divisors (20054245).

57778923 is a wasteful number, since it uses less digits than its factorization.

57778923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198653.

The product of its digits is 740880, while the sum is 48.

The square root of 57778923 is about 7601.2448322627. The cubic root of 57778923 is about 386.5952207306.

The spelling of 57778923 in words is "fifty-seven million, seven hundred seventy-eight thousand, nine hundred twenty-three".