198867984 has 80 divisors (see below), whose sum is σ = 618055680. Its totient is φ = 53827200.

The previous prime is 198867979. The next prime is 198867997. The reversal of 198867984 is 489768891.

198867984 is digitally balanced in base 2, because in such base 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 15 ways as a sum of consecutive naturals, for example, 9192 + ... + 21959.

It is an arithmetic number, because the mean of its divisors is an integer number (7725696).

Almost surely, 2^198867984 is an apocalyptic number.

198867984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

198867984 is an abundant number, since it is smaller than the sum of its proper divisors (419187696).

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

198867984 is a wasteful number, since it uses less digits than its factorization.

198867984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31188 (or 31182 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 60.

The square root of 198867984 is about 14102.0560203114. The cubic root of 198867984 is about 583.6981144438.

The spelling of 198867984 in words is "one hundred ninety-eight million, eight hundred sixty-seven thousand, nine hundred eighty-four".