85366717 has 4 divisors (see below), whose sum is σ = 85542496. Its totient is φ = 85190940.

The previous prime is 85366703. The next prime is 85366727. The reversal of 85366717 is 71766358.

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 a de Polignac number, because none of the positive numbers 2^k-85366717 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 (85366727) 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, 87159 + ... + 88132.

It is an arithmetic number, because the mean of its divisors is an integer number (21385624).

Almost surely, 2^85366717 is an apocalyptic number.

It is an amenable number.

85366717 is a deficient number, since it is larger than the sum of its proper divisors (175779).

85366717 is a wasteful number, since it uses less digits than its factorization.

85366717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175778.

The product of its digits is 211680, while the sum is 43.

The square root of 85366717 is about 9239.4110743055. The cubic root of 85366717 is about 440.3143707209.

The spelling of 85366717 in words is "eighty-five million, three hundred sixty-six thousand, seven hundred seventeen".