86599 has 2 divisors, whose sum is σ = 86600. Its totient is φ = 86598.

The previous prime is 86587. The next prime is 86627. The reversal of 86599 is 99568.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86599 - 2¹¹ = 84551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43299 + 43300.

It is an arithmetic number, because the mean of its divisors is an integer number (43300).

2⁸⁶⁵⁹⁹ is an apocalyptic number.

86599 is a deficient number, since it is larger than the sum of its proper divisors (1).

86599 is an equidigital number, since it uses as much as digits as its factorization.

86599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 37.

The square root of 86599 is about 294.2770803172. The cubic root of 86599 is about 44.2422928047.

It can be divided in two parts, 8659 and 9, that added together give a palindrome (8668).

The spelling of 86599 in words is "eighty-six thousand, five hundred ninety-nine".