86699 has 4 divisors (see below), whose sum is σ = 87360. Its totient is φ = 86040.

The previous prime is 86693. The next prime is 86711. The reversal of 86699 is 99668.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 86699 - 2¹⁶ = 21163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86693) 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, 59 + ... + 420.

It is an arithmetic number, because the mean of its divisors is an integer number (21840).

2⁸⁶⁶⁹⁹ is an apocalyptic number.

86699 is a deficient number, since it is larger than the sum of its proper divisors (661).

86699 is a wasteful number, since it uses less digits than its factorization.

86699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660.

The product of its digits is 23328, while the sum is 38.

The square root of 86699 is about 294.4469391928. The cubic root of 86699 is about 44.2593158166.

The spelling of 86699 in words is "eighty-six thousand, six hundred ninety-nine".