198799485 has 16 divisors (see below), whose sum is σ = 319749120. Its totient is φ = 105469760.

The previous prime is 198799477. The next prime is 198799487. The reversal of 198799485 is 584997891.

It is not a de Polignac number, because 198799485 - 2³ = 198799477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198799487) 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 15 ways as a sum of consecutive naturals, for example, 31830 + ... + 37559.

It is an arithmetic number, because the mean of its divisors is an integer number (19984320).

Almost surely, 2^198799485 is an apocalyptic number.

198799485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

198799485 is a deficient number, since it is larger than the sum of its proper divisors (120949635).

198799485 is a wasteful number, since it uses less digits than its factorization.

198799485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69588.

The product of its digits is 6531840, while the sum is 60.

The square root of 198799485 is about 14099.6271227292. The cubic root of 198799485 is about 583.6310895297.

The spelling of 198799485 in words is "one hundred ninety-eight million, seven hundred ninety-nine thousand, four hundred eighty-five".