108739988 has 12 divisors (see below), whose sum is σ = 217480032. Its totient is φ = 46602840.

The previous prime is 108739987. The next prime is 108739993. The reversal of 108739988 is 889937801.

108739988 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108739987) 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, 1941758 + ... + 1941813.

It is an arithmetic number, because the mean of its divisors is an integer number (18123336).

Almost surely, 2^108739988 is an apocalyptic number.

It is an amenable number.

108739988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

108739988 is a wasteful number, since it uses less digits than its factorization.

108739988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883582 (or 3883580 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 53.

The square root of 108739988 is about 10427.8467576005. The cubic root of 108739988 is about 477.3054869596.

The spelling of 108739988 in words is "one hundred eight million, seven hundred thirty-nine thousand, nine hundred eighty-eight".