108187839 has 8 divisors (see below), whose sum is σ = 160278320. Its totient is φ = 72125208.

The previous prime is 108187823. The next prime is 108187873. The reversal of 108187839 is 938781801.

It is not a de Polignac number, because 108187839 - 2⁴ = 108187823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108187794 and 108187803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108187039) 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, 2003452 + ... + 2003505.

It is an arithmetic number, because the mean of its divisors is an integer number (20034790).

Almost surely, 2^108187839 is an apocalyptic number.

108187839 is a deficient number, since it is larger than the sum of its proper divisors (52090481).

108187839 is an equidigital number, since it uses as much as digits as its factorization.

108187839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006966 (or 4006960 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 108187839 is about 10401.3383273500. The cubic root of 108187839 is about 476.4962444105.

The spelling of 108187839 in words is "one hundred eight million, one hundred eighty-seven thousand, eight hundred thirty-nine".