108659 has 4 divisors (see below), whose sum is σ = 109416. Its totient is φ = 107904.

The previous prime is 108649. The next prime is 108677. The reversal of 108659 is 956801.

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 108659 - 2⁴ = 108643 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (108649) 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, 89 + ... + 474.

It is an arithmetic number, because the mean of its divisors is an integer number (27354).

2¹⁰⁸⁶⁵⁹ is an apocalyptic number.

108659 is a deficient number, since it is larger than the sum of its proper divisors (757).

108659 is an equidigital number, since it uses as much as digits as its factorization.

108659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 108659 is about 329.6346462373. The cubic root of 108659 is about 47.7186960745.

It can be divided in two parts, 108 and 659, that added together give a palindrome (767).

The spelling of 108659 in words is "one hundred eight thousand, six hundred fifty-nine".