57986291 has 4 divisors (see below), whose sum is σ = 63257784. Its totient is φ = 52714800.

The previous prime is 57986281. The next prime is 57986311. The reversal of 57986291 is 19268975.

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-57986291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57986281) 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, 2635730 + ... + 2635751.

It is an arithmetic number, because the mean of its divisors is an integer number (15814446).

Almost surely, 2^57986291 is an apocalyptic number.

57986291 is a deficient number, since it is larger than the sum of its proper divisors (5271493).

57986291 is a wasteful number, since it uses less digits than its factorization.

57986291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271492.

The product of its digits is 272160, while the sum is 47.

The square root of 57986291 is about 7614.8730127298. The cubic root of 57986291 is about 387.0571640459.

The spelling of 57986291 in words is "fifty-seven million, nine hundred eighty-six thousand, two hundred ninety-one".