57991834 has 4 divisors (see below), whose sum is σ = 86987754. Its totient is φ = 28995916.

The previous prime is 57991823. The next prime is 57991891. The reversal of 57991834 is 43819975.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 55279225 + 2712609 = 7435^2 + 1647^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14497957 + ... + 14497960.

Almost surely, 2^57991834 is an apocalyptic number.

57991834 is a deficient number, since it is larger than the sum of its proper divisors (28995920).

57991834 is a wasteful number, since it uses less digits than its factorization.

57991834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28995919.

The product of its digits is 272160, while the sum is 46.

The square root of 57991834 is about 7615.2369628266. The cubic root of 57991834 is about 387.0694967856.

The spelling of 57991834 in words is "fifty-seven million, nine hundred ninety-one thousand, eight hundred thirty-four".