85279013 has 4 divisors (see below), whose sum is σ = 86724480. Its totient is φ = 83833548.

The previous prime is 85279003. The next prime is 85279027. The reversal of 85279013 is 31097258.

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 85279013 - 2⁴ = 85278997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85279003) 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, 722645 + ... + 722762.

It is an arithmetic number, because the mean of its divisors is an integer number (21681120).

Almost surely, 2^85279013 is an apocalyptic number.

It is an amenable number.

85279013 is a deficient number, since it is larger than the sum of its proper divisors (1445467).

85279013 is a wasteful number, since it uses less digits than its factorization.

85279013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445466.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 85279013 is about 9234.6636646929. The cubic root of 85279013 is about 440.1635290918.

The spelling of 85279013 in words is "eighty-five million, two hundred seventy-nine thousand, thirteen".