85587717 has 4 divisors (see below), whose sum is σ = 114116960. Its totient is φ = 57058476.

The previous prime is 85587709. The next prime is 85587727. The reversal of 85587717 is 71778558.

It is a happy number.

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 not a de Polignac number, because 85587717 - 2³ = 85587709 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 (85587727) 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, 14264617 + ... + 14264622.

It is an arithmetic number, because the mean of its divisors is an integer number (28529240).

Almost surely, 2^85587717 is an apocalyptic number.

It is an amenable number.

85587717 is a deficient number, since it is larger than the sum of its proper divisors (28529243).

85587717 is a wasteful number, since it uses less digits than its factorization.

85587717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28529242.

The product of its digits is 548800, while the sum is 48.

The square root of 85587717 is about 9251.3629806640. The cubic root of 85587717 is about 440.6940097938.

The spelling of 85587717 in words is "eighty-five million, five hundred eighty-seven thousand, seven hundred seventeen".