108375989 has 4 divisors (see below), whose sum is σ = 108841356. Its totient is φ = 107910624.

The previous prime is 108375983. The next prime is 108375991. The reversal of 108375989 is 989573801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 989573801 = 9857 ⋅100393.

It can be written as a sum of positive squares in 2 ways, for example, as 78180964 + 30195025 = 8842^2 + 5495^2 .

It is a cyclic number.

It is not a de Polignac number, because 108375989 - 2⁸ = 108375733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108375983) 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, 232334 + ... + 232799.

It is an arithmetic number, because the mean of its divisors is an integer number (27210339).

Almost surely, 2^108375989 is an apocalyptic number.

It is an amenable number.

108375989 is a deficient number, since it is larger than the sum of its proper divisors (465367).

108375989 is an equidigital number, since it uses as much as digits as its factorization.

108375989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465366.

The product of its (nonzero) digits is 544320, while the sum is 50.

The square root of 108375989 is about 10410.3789076095. The cubic root of 108375989 is about 476.7723100863.

The spelling of 108375989 in words is "one hundred eight million, three hundred seventy-five thousand, nine hundred eighty-nine".