86516517 has 8 divisors (see below), whose sum is σ = 115457760. Its totient is φ = 57626480.

The previous prime is 86516513. The next prime is 86516527. The reversal of 86516517 is 71561568.

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 86516517 - 2² = 86516513 is a prime.

It is a super-2 number, since 2×86516517² = 14970215427622578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86516513) 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, 8667 + ... + 15752.

It is an arithmetic number, because the mean of its divisors is an integer number (14432220).

Almost surely, 2^86516517 is an apocalyptic number.

It is an amenable number.

86516517 is a deficient number, since it is larger than the sum of its proper divisors (28941243).

86516517 is a wasteful number, since it uses less digits than its factorization.

86516517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25603.

The product of its digits is 50400, while the sum is 39.

The square root of 86516517 is about 9301.4255359058. The cubic root of 86516517 is about 442.2824184863.

The spelling of 86516517 in words is "eighty-six million, five hundred sixteen thousand, five hundred seventeen".