198948085 has 12 divisors (see below), whose sum is σ = 277715628. Its totient is φ = 136421376.

The previous prime is 198948053. The next prime is 198948089. The reversal of 198948085 is 580849891.

It can be written as a sum of positive squares in 2 ways, for example, as 65707236 + 133240849 = 8106^2 + 11543^2 .

It is not a de Polignac number, because 198948085 - 2⁵ = 198948053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198948089) 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, 405772 + ... + 406261.

It is an arithmetic number, because the mean of its divisors is an integer number (23142969).

Almost surely, 2^198948085 is an apocalyptic number.

It is an amenable number.

198948085 is a deficient number, since it is larger than the sum of its proper divisors (78767543).

198948085 is an equidigital number, since it uses as much as digits as its factorization.

198948085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812052 (or 812045 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 52.

The square root of 198948085 is about 14104.8957812527. The cubic root of 198948085 is about 583.7764721659.

The spelling of 198948085 in words is "one hundred ninety-eight million, nine hundred forty-eight thousand, eighty-five".