108399 has 8 divisors (see below), whose sum is σ = 150912. Its totient is φ = 69080.

The previous prime is 108379. The next prime is 108401. The reversal of 108399 is 993801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108399 - 2⁷ = 108271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717 + ... + 854.

It is an arithmetic number, because the mean of its divisors is an integer number (18864).

2¹⁰⁸³⁹⁹ is an apocalyptic number.

108399 is a deficient number, since it is larger than the sum of its proper divisors (42513).

108399 is a wasteful number, since it uses less digits than its factorization.

108399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 108399 is about 329.2400340177. The cubic root of 108399 is about 47.6806051359.

The spelling of 108399 in words is "one hundred eight thousand, three hundred ninety-nine".