57823139 has 4 divisors (see below), whose sum is σ = 63079800. Its totient is φ = 52566480.

The previous prime is 57823133. The next prime is 57823163. The reversal of 57823139 is 93132875.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57823139 - 2⁴ = 57823123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57823133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2628314 + ... + 2628335.

It is an arithmetic number, because the mean of its divisors is an integer number (15769950).

Almost surely, 2^57823139 is an apocalyptic number.

57823139 is a deficient number, since it is larger than the sum of its proper divisors (5256661).

57823139 is a wasteful number, since it uses less digits than its factorization.

57823139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5256660.

The product of its digits is 45360, while the sum is 38.

The square root of 57823139 is about 7604.1527470192. The cubic root of 57823139 is about 386.6938110981.

The spelling of 57823139 in words is "fifty-seven million, eight hundred twenty-three thousand, one hundred thirty-nine".