198636608 has 56 divisors (see below), whose sum is σ = 408371040. Its totient is φ = 95800320.

The previous prime is 198636601. The next prime is 198636673. The reversal of 198636608 is 806636891.

198636608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (198636601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244523 + ... + 245333.

It is an arithmetic number, because the mean of its divisors is an integer number (7292340).

Almost surely, 2^198636608 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 198636608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204185520).

198636608 is an abundant number, since it is smaller than the sum of its proper divisors (209734432).

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

198636608 is an equidigital number, since it uses as much as digits as its factorization.

198636608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 198636608 is about 14093.8500062971. The cubic root of 198636608 is about 583.4716557602.

The spelling of 198636608 in words is "one hundred ninety-eight million, six hundred thirty-six thousand, six hundred eight".