109999904 has 108 divisors (see below), whose sum is σ = 263873862. Its totient is φ = 44997120.

The previous prime is 109999889. The next prime is 109999913. The reversal of 109999904 is 409999901.

It can be written as a sum of positive squares in only one way, i.e., 91164304 + 18835600 = 9548^2 + 4340^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1506812 + ... + 1506884.

Almost surely, 2^109999904 is an apocalyptic number.

109999904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109999904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131936931).

109999904 is an abundant number, since it is smaller than the sum of its proper divisors (153873958).

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

109999904 is an equidigital number, since it uses as much as digits as its factorization.

109999904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 50.

The square root of 109999904 is about 10488.0839050801. The cubic root of 109999904 is about 479.1418463195.

The spelling of 109999904 in words is "one hundred nine million, nine hundred ninety-nine thousand, nine hundred four".