109637808 has 80 divisors (see below), whose sum is σ = 332478720. Its totient is φ = 30475008.

The previous prime is 109637797. The next prime is 109637821. The reversal of 109637808 is 808736901.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 109637808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8023 + ... + 16841.

It is an arithmetic number, because the mean of its divisors is an integer number (4155984).

Almost surely, 2^109637808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109637808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166239360).

109637808 is an abundant number, since it is smaller than the sum of its proper divisors (222840912).

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

109637808 is a wasteful number, since it uses less digits than its factorization.

109637808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8874 (or 8868 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 109637808 is about 10470.8074187237. The cubic root of 109637808 is about 478.6155244521.

The spelling of 109637808 in words is "one hundred nine million, six hundred thirty-seven thousand, eight hundred eight".