108687820 has 24 divisors (see below), whose sum is σ = 228441024. Its totient is φ = 43437696.

The previous prime is 108687797. The next prime is 108687841. The reversal of 108687820 is 28786801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41469 + ... + 44011.

It is an arithmetic number, because the mean of its divisors is an integer number (9518376).

Almost surely, 2^108687820 is an apocalyptic number.

108687820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108687820 is an abundant number, since it is smaller than the sum of its proper divisors (119753204).

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

108687820 is a wasteful number, since it uses less digits than its factorization.

108687820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689 (or 4687 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 108687820 is about 10425.3450782216. The cubic root of 108687820 is about 477.2291456611.

The spelling of 108687820 in words is "one hundred eight million, six hundred eighty-seven thousand, eight hundred twenty".