198950856 has 96 divisors (see below), whose sum is σ = 543553920. Its totient is φ = 60652800.

The previous prime is 198950827. The next prime is 198950861. The reversal of 198950856 is 658059891.

198950856 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 198950799 and 198950808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 734001 + ... + 734271.

It is an arithmetic number, because the mean of its divisors is an integer number (5662020).

Almost surely, 2^198950856 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 198950856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271776960).

198950856 is an abundant number, since it is smaller than the sum of its proper divisors (344603064).

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

198950856 is a wasteful number, since it uses less digits than its factorization.

198950856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 51.

The square root of 198950856 is about 14104.9940092153. The cubic root of 198950856 is about 583.7791824828.

The spelling of 198950856 in words is "one hundred ninety-eight million, nine hundred fifty thousand, eight hundred fifty-six".