198085599 has 12 divisors (see below), whose sum is σ = 286322400. Its totient is φ = 131965344.

The previous prime is 198085561. The next prime is 198085633. The reversal of 198085599 is 995580891.

198085599 is a `hidden beast` number, since 1 + 9 + 80 + 8 + 559 + 9 = 666.

It is not a de Polignac number, because 198085599 - 2⁷ = 198085471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198085529) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7642 + ... + 21320.

It is an arithmetic number, because the mean of its divisors is an integer number (23860200).

Almost surely, 2^198085599 is an apocalyptic number.

198085599 is a deficient number, since it is larger than the sum of its proper divisors (88236801).

198085599 is a wasteful number, since it uses less digits than its factorization.

198085599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15294 (or 15291 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 54.

The square root of 198085599 is about 14074.2885788234. The cubic root of 198085599 is about 582.9316481057.

The spelling of 198085599 in words is "one hundred ninety-eight million, eighty-five thousand, five hundred ninety-nine".