85994279 has 16 divisors (see below), whose sum is σ = 107421696. Its totient is φ = 67132800.

The previous prime is 85994267. The next prime is 85994287. The reversal of 85994279 is 97249958.

It is a de Polignac number, because none of the positive numbers 2^k-85994279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85994279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85994239) 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 15 ways as a sum of consecutive naturals, for example, 7967 + ... + 15344.

It is an arithmetic number, because the mean of its divisors is an integer number (6713856).

Almost surely, 2^85994279 is an apocalyptic number.

85994279 is a deficient number, since it is larger than the sum of its proper divisors (21427417).

85994279 is a wasteful number, since it uses less digits than its factorization.

85994279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23366.

The product of its digits is 1632960, while the sum is 53.

The square root of 85994279 is about 9273.3100347179. The cubic root of 85994279 is about 441.3907082278.

The spelling of 85994279 in words is "eighty-five million, nine hundred ninety-four thousand, two hundred seventy-nine".