198082685 has 8 divisors (see below), whose sum is σ = 243497016. Its totient is φ = 154600960.

The previous prime is 198082681. The next prime is 198082741. The reversal of 198082685 is 586280891.

It can be written as a sum of positive squares in 4 ways, for example, as 145924 + 197936761 = 382^2 + 14069^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198082685 - 2² = 198082681 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 (198082681) 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, 482924 + ... + 483333.

It is an arithmetic number, because the mean of its divisors is an integer number (30437127).

Almost surely, 2^198082685 is an apocalyptic number.

It is an amenable number.

198082685 is a deficient number, since it is larger than the sum of its proper divisors (45414331).

198082685 is an equidigital number, since it uses as much as digits as its factorization.

198082685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966303.

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 198082685 is about 14074.1850563363. The cubic root of 198082685 is about 582.9287896258.

The spelling of 198082685 in words is "one hundred ninety-eight million, eighty-two thousand, six hundred eighty-five".