108239886 has 48 divisors (see below), whose sum is σ = 249384096. Its totient is φ = 33853248.

The previous prime is 108239821. The next prime is 108239897. The reversal of 108239886 is 688932801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19476 + ... + 24408.

It is an arithmetic number, because the mean of its divisors is an integer number (5195502).

Almost surely, 2^108239886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108239886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124692048).

108239886 is an abundant number, since it is smaller than the sum of its proper divisors (141144210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108239886 is a wasteful number, since it uses less digits than its factorization.

108239886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017 (or 5014 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 108239886 is about 10403.8399641671. The cubic root of 108239886 is about 476.5726430900.

The spelling of 108239886 in words is "one hundred eight million, two hundred thirty-nine thousand, eight hundred eighty-six".