198084859 has 8 divisors (see below), whose sum is σ = 227825888. Its totient is φ = 168704640.

The previous prime is 198084853. The next prime is 198084883. The reversal of 198084859 is 958480891.

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

It is a cyclic number.

It is not a de Polignac number, because 198084859 - 2³ = 198084851 is a prime.

It is a super-2 number, since 2×198084859² = 78475222730099762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198084851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89022 + ... + 91219.

It is an arithmetic number, because the mean of its divisors is an integer number (28478236).

Almost surely, 2^198084859 is an apocalyptic number.

198084859 is a deficient number, since it is larger than the sum of its proper divisors (29741029).

198084859 is a wasteful number, since it uses less digits than its factorization.

198084859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180405.

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

The square root of 198084859 is about 14074.2622897259. The cubic root of 198084859 is about 582.9309222075.

The spelling of 198084859 in words is "one hundred ninety-eight million, eighty-four thousand, eight hundred fifty-nine".