86799 has 4 divisors (see below), whose sum is σ = 115736. Its totient is φ = 57864.

The previous prime is 86783. The next prime is 86813. The reversal of 86799 is 99768.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 86799 - 2⁴ = 86783 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86719) 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, 14464 + ... + 14469.

It is an arithmetic number, because the mean of its divisors is an integer number (28934).

2⁸⁶⁷⁹⁹ is an apocalyptic number.

86799 is a deficient number, since it is larger than the sum of its proper divisors (28937).

86799 is a wasteful number, since it uses less digits than its factorization.

86799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28936.

The product of its digits is 27216, while the sum is 39.

The square root of 86799 is about 294.6167001377. The cubic root of 86799 is about 44.2763257438.

The spelling of 86799 in words is "eighty-six thousand, seven hundred ninety-nine".