86057 has 4 divisors (see below), whose sum is σ = 87936. Its totient is φ = 84180.

The previous prime is 86029. The next prime is 86069. The reversal of 86057 is 75068.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86057 - 2¹⁶ = 20521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86017) 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, 869 + ... + 962.

It is an arithmetic number, because the mean of its divisors is an integer number (21984).

2⁸⁶⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

86057 is a deficient number, since it is larger than the sum of its proper divisors (1879).

86057 is a wasteful number, since it uses less digits than its factorization.

86057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 86057 is about 293.3547340678. The cubic root of 86057 is about 44.1497993422.

The spelling of 86057 in words is "eighty-six thousand, fifty-seven".