85179 has 4 divisors (see below), whose sum is σ = 113576. Its totient is φ = 56784.

The previous prime is 85159. The next prime is 85193. The reversal of 85179 is 97158.

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

It is not a de Polignac number, because 85179 - 2⁵ = 85147 is a prime.

It is a D-number.

It is a Duffinian number.

85179 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (85109) 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, 14194 + ... + 14199.

It is an arithmetic number, because the mean of its divisors is an integer number (28394).

2⁸⁵¹⁷⁹ is an apocalyptic number.

85179 is a deficient number, since it is larger than the sum of its proper divisors (28397).

85179 is a wasteful number, since it uses less digits than its factorization.

85179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28396.

The product of its digits is 2520, while the sum is 30.

The square root of 85179 is about 291.8544157624. The cubic root of 85179 is about 43.9991391016. Note that the first 3 decimals are identical.

The spelling of 85179 in words is "eighty-five thousand, one hundred seventy-nine".