57992239 has 4 divisors (see below), whose sum is σ = 58150624. Its totient is φ = 57833856.

The previous prime is 57992213. The next prime is 57992243. The reversal of 57992239 is 93229975.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57992239 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 (57992279) 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, 78642 + ... + 79375.

It is an arithmetic number, because the mean of its divisors is an integer number (14537656).

Almost surely, 2^57992239 is an apocalyptic number.

57992239 is a deficient number, since it is larger than the sum of its proper divisors (158385).

57992239 is a wasteful number, since it uses less digits than its factorization.

57992239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158384.

The product of its digits is 306180, while the sum is 46.

The square root of 57992239 is about 7615.2635542048. The cubic root of 57992239 is about 387.0703978480.

The spelling of 57992239 in words is "fifty-seven million, nine hundred ninety-two thousand, two hundred thirty-nine".