198807996 has 48 divisors (see below), whose sum is σ = 496087200. Its totient is φ = 61747200.

The previous prime is 198807943. The next prime is 198808009. The reversal of 198807996 is 699708891.

It is a congruent number.

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, 15780 + ... + 25428.

It is an arithmetic number, because the mean of its divisors is an integer number (10335150).

Almost surely, 2^198807996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198807996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248043600).

198807996 is an abundant number, since it is smaller than the sum of its proper divisors (297279204).

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

198807996 is a wasteful number, since it uses less digits than its factorization.

198807996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9774 (or 9772 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 57.

The square root of 198807996 is about 14099.9289359911. The cubic root of 198807996 is about 583.6394182121.

The spelling of 198807996 in words is "one hundred ninety-eight million, eight hundred seven thousand, nine hundred ninety-six".