198287856 has 120 divisors (see below), whose sum is σ = 606221616. Its totient is φ = 60134400.

The previous prime is 198287839. The next prime is 198287879. The reversal of 198287856 is 658782891.

198287856 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 23 ways as a sum of consecutive naturals, for example, 135931 + ... + 137381.

Almost surely, 2^198287856 is an apocalyptic number.

198287856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198287856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303110808).

198287856 is an abundant number, since it is smaller than the sum of its proper divisors (407933760).

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

198287856 is a wasteful number, since it uses less digits than its factorization.

198287856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551 (or 1542 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The square root of 198287856 is about 14081.4720821369. The cubic root of 198287856 is about 583.1299830704.

The spelling of 198287856 in words is "one hundred ninety-eight million, two hundred eighty-seven thousand, eight hundred fifty-six".