108687 has 4 divisors (see below), whose sum is σ = 144920. Its totient is φ = 72456.

The previous prime is 108677. The next prime is 108707. The reversal of 108687 is 786801.

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

It is not a de Polignac number, because 108687 - 2¹⁶ = 43151 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 108687.

It is not an unprimeable number, because it can be changed into a prime (108637) 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, 18112 + ... + 18117.

It is an arithmetic number, because the mean of its divisors is an integer number (36230).

2¹⁰⁸⁶⁸⁷ is an apocalyptic number.

108687 is a deficient number, since it is larger than the sum of its proper divisors (36233).

108687 is an equidigital number, since it uses as much as digits as its factorization.

108687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36232.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 108687 is about 329.6771147653. The cubic root of 108687 is about 47.7227945499.

The spelling of 108687 in words is "one hundred eight thousand, six hundred eighty-seven".