85479 has 4 divisors (see below), whose sum is σ = 113976. Its totient is φ = 56984.

The previous prime is 85469. The next prime is 85487. The reversal of 85479 is 97458.

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 85479 - 2⁵ = 85447 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14244 + ... + 14249.

It is an arithmetic number, because the mean of its divisors is an integer number (28494).

2⁸⁵⁴⁷⁹ is an apocalyptic number.

85479 is a deficient number, since it is larger than the sum of its proper divisors (28497).

85479 is a wasteful number, since it uses less digits than its factorization.

85479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28496.

The product of its digits is 10080, while the sum is 33.

The square root of 85479 is about 292.3679188967. The cubic root of 85479 is about 44.0507334911.

Adding to 85479 its product of digits (10080), we get a palindrome (95559).

The spelling of 85479 in words is "eighty-five thousand, four hundred seventy-nine".