198327636 has 96 divisors (see below), whose sum is σ = 572947200. Its totient is φ = 58907520.

The previous prime is 198327631. The next prime is 198327691. The reversal of 198327636 is 636723891.

198327636 is a `hidden beast` number, since 1 + 9 + 8 + 3 + 2 + 7 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 198327591 and 198327600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198327631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38281 + ... + 43151.

It is an arithmetic number, because the mean of its divisors is an integer number (5968200).

Almost surely, 2^198327636 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 198327636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286473600).

198327636 is an abundant number, since it is smaller than the sum of its proper divisors (374619564).

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

198327636 is a wasteful number, since it uses less digits than its factorization.

198327636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926 (or 4918 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 198327636 is about 14082.8845056686. The cubic root of 198327636 is about 583.1689758090.

The spelling of 198327636 in words is "one hundred ninety-eight million, three hundred twenty-seven thousand, six hundred thirty-six".