85929 has 4 divisors (see below), whose sum is σ = 114576. Its totient is φ = 57284.

The previous prime is 85909. The next prime is 85931. The reversal of 85929 is 92958.

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 85929 - 2¹⁵ = 53161 is a prime.

It is a d-powerful number, because it can be written as 8³ + 5⁷ + 9³ + 2 + 9⁴ .

It is a D-number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 85929.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 85929.

It is not an unprimeable number, because it can be changed into a prime (85909) 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, 14319 + ... + 14324.

It is an arithmetic number, because the mean of its divisors is an integer number (28644).

2⁸⁵⁹²⁹ is an apocalyptic number.

It is an amenable number.

85929 is a deficient number, since it is larger than the sum of its proper divisors (28647).

85929 is a wasteful number, since it uses less digits than its factorization.

85929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28646.

The product of its digits is 6480, while the sum is 33.

The square root of 85929 is about 293.1364869817. The cubic root of 85929 is about 44.1278992122.

It can be divided in two parts, 859 and 29, that added together give a palindrome (888).

The spelling of 85929 in words is "eighty-five thousand, nine hundred twenty-nine".