85942879 has 8 divisors (see below), whose sum is σ = 93823488. Its totient is φ = 78073560.

The previous prime is 85942861. The next prime is 85942889. The reversal of 85942879 is 97824958.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85942879 - 2¹³ = 85934687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85942859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25554 + ... + 28720.

It is an arithmetic number, because the mean of its divisors is an integer number (11727936).

Almost surely, 2^85942879 is an apocalyptic number.

85942879 is a deficient number, since it is larger than the sum of its proper divisors (7880609).

85942879 is a wasteful number, since it uses less digits than its factorization.

85942879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645.

The product of its digits is 1451520, while the sum is 52.

The square root of 85942879 is about 9270.5382260147. The cubic root of 85942879 is about 441.3027488721.

The spelling of 85942879 in words is "eighty-five million, nine hundred forty-two thousand, eight hundred seventy-nine".