57871 has 4 divisors (see below), whose sum is σ = 63144. Its totient is φ = 52600.

The previous prime is 57859. The next prime is 57881. The reversal of 57871 is 17875.

It is a happy number.

57871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 57871 - 2⁵ = 57839 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 (57881) 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, 2620 + ... + 2641.

It is an arithmetic number, because the mean of its divisors is an integer number (15786).

2⁵⁷⁸⁷¹ is an apocalyptic number.

57871 is a deficient number, since it is larger than the sum of its proper divisors (5273).

57871 is a wasteful number, since it uses less digits than its factorization.

57871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5272.

The product of its digits is 1960, while the sum is 28.

The square root of 57871 is about 240.5639208194. The cubic root of 57871 is about 38.6800472254.

The spelling of 57871 in words is "fifty-seven thousand, eight hundred seventy-one".