86551717 has 8 divisors (see below), whose sum is σ = 99199296. Its totient is φ = 73974912.

The previous prime is 86551693. The next prime is 86551723. The reversal of 86551717 is 71715568.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86551717 - 2²³ = 78163109 is a prime.

It is a super-3 number, since 3×86551717³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86551717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86551417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15043 + ... + 19984.

It is an arithmetic number, because the mean of its divisors is an integer number (12399912).

Almost surely, 2^86551717 is an apocalyptic number.

It is an amenable number.

86551717 is a deficient number, since it is larger than the sum of its proper divisors (12647579).

86551717 is a wasteful number, since it uses less digits than its factorization.

86551717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35387.

The product of its digits is 58800, while the sum is 40.

The square root of 86551717 is about 9303.3175265601. The cubic root of 86551717 is about 442.3423925073.

The spelling of 86551717 in words is "eighty-six million, five hundred fifty-one thousand, seven hundred seventeen".