86418517 has 16 divisors (see below), whose sum is σ = 93208320. Its totient is φ = 79876800.

The previous prime is 86418491. The next prime is 86418559. The reversal of 86418517 is 71581468.

It is a cyclic number.

It is not a de Polignac number, because 86418517 - 2¹¹ = 86416469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86418517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86418587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200292 + ... + 200722.

It is an arithmetic number, because the mean of its divisors is an integer number (5825520).

Almost surely, 2^86418517 is an apocalyptic number.

It is an amenable number.

86418517 is a deficient number, since it is larger than the sum of its proper divisors (6789803).

86418517 is a wasteful number, since it uses less digits than its factorization.

86418517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684.

The product of its digits is 53760, while the sum is 40.

The square root of 86418517 is about 9296.1560335442. The cubic root of 86418517 is about 442.1153596232.

The spelling of 86418517 in words is "eighty-six million, four hundred eighteen thousand, five hundred seventeen".