85765013 has 4 divisors (see below), whose sum is σ = 85860480. Its totient is φ = 85669548.

The previous prime is 85764967. The next prime is 85765019. The reversal of 85765013 is 31056758.

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 85765013 - 2²⁶ = 18656149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85765019) 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, 46373 + ... + 48186.

It is an arithmetic number, because the mean of its divisors is an integer number (21465120).

Almost surely, 2^85765013 is an apocalyptic number.

It is an amenable number.

85765013 is a deficient number, since it is larger than the sum of its proper divisors (95467).

85765013 is an equidigital number, since it uses as much as digits as its factorization.

85765013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95466.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 85765013 is about 9260.9401790531. The cubic root of 85765013 is about 440.9981009203.

The spelling of 85765013 in words is "eighty-five million, seven hundred sixty-five thousand, thirteen".