109998864 has 40 divisors (see below), whose sum is σ = 315738720. Its totient is φ = 36666144.

The previous prime is 109998853. The next prime is 109998871. The reversal of 109998864 is 468899901.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 109998864.

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, 126882 + ... + 127745.

It is an arithmetic number, because the mean of its divisors is an integer number (7893468).

Almost surely, 2^109998864 is an apocalyptic number.

It is an amenable number.

109998864 is an abundant number, since it is smaller than the sum of its proper divisors (205739856).

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

109998864 is a wasteful number, since it uses less digits than its factorization.

109998864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254644 (or 254632 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 109998864 is about 10488.0343248866. The cubic root of 109998864 is about 479.1403362906.

The spelling of 109998864 in words is "one hundred nine million, nine hundred ninety-eight thousand, eight hundred sixty-four".