198879888 has 20 divisors (see below), whose sum is σ = 513773168. Its totient is φ = 66293280.

The previous prime is 198879851. The next prime is 198879899. The reversal of 198879888 is 888978891.

198879888 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2071618 + ... + 2071713.

Almost surely, 2^198879888 is an apocalyptic number.

It is an amenable number.

198879888 is an abundant number, since it is smaller than the sum of its proper divisors (314893280).

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

198879888 is a wasteful number, since it uses less digits than its factorization.

198879888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143342 (or 4143336 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 66.

The square root of 198879888 is about 14102.4780801106. The cubic root of 198879888 is about 583.7097607020.

The spelling of 198879888 in words is "one hundred ninety-eight million, eight hundred seventy-nine thousand, eight hundred eighty-eight".