85513717 has 4 divisors (see below), whose sum is σ = 88272256. Its totient is φ = 82755180.

The previous prime is 85513709. The next prime is 85513739. The reversal of 85513717 is 71731558.

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 85513717 - 2³ = 85513709 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 (85513117) 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, 1379223 + ... + 1379284.

It is an arithmetic number, because the mean of its divisors is an integer number (22068064).

Almost surely, 2^85513717 is an apocalyptic number.

It is an amenable number.

85513717 is a deficient number, since it is larger than the sum of its proper divisors (2758539).

85513717 is a wasteful number, since it uses less digits than its factorization.

85513717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758538.

The product of its digits is 29400, while the sum is 37.

The square root of 85513717 is about 9247.3627051176. The cubic root of 85513717 is about 440.5669636822.

The spelling of 85513717 in words is "eighty-five million, five hundred thirteen thousand, seven hundred seventeen".