198993976 has 32 divisors (see below), whose sum is σ = 412244640. Its totient is φ = 89571328.

The previous prime is 198993967. The next prime is 198994009. The reversal of 198993976 is 679399891.

198993976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 28681 + ... + 34936.

It is an arithmetic number, because the mean of its divisors is an integer number (12882645).

Almost surely, 2^198993976 is an apocalyptic number.

It is an amenable number.

198993976 is an abundant number, since it is smaller than the sum of its proper divisors (213250664).

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

198993976 is a wasteful number, since it uses less digits than its factorization.

198993976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63663 (or 63659 counting only the distinct ones).

The product of its digits is 6613488, while the sum is 61.

The square root of 198993976 is about 14106.5224630311. The cubic root of 198993976 is about 583.8213549410.

The spelling of 198993976 in words is "one hundred ninety-eight million, nine hundred ninety-three thousand, nine hundred seventy-six".