198998286 has 16 divisors (see below), whose sum is σ = 418944000. Its totient is φ = 62841528.

The previous prime is 198998263. The next prime is 198998309. The reversal of 198998286 is 682899891.

It is an interprime number because it is at equal distance from previous prime (198998263) and next prime (198998309).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872686 + ... + 872913.

It is an arithmetic number, because the mean of its divisors is an integer number (26184000).

Almost surely, 2^198998286 is an apocalyptic number.

198998286 is an abundant number, since it is smaller than the sum of its proper divisors (219945714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198998286 is a wasteful number, since it uses less digits than its factorization.

198998286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745623.

The product of its digits is 4478976, while the sum is 60.

The square root of 198998286 is about 14106.6752284158. The cubic root of 198998286 is about 583.8255698959.

The spelling of 198998286 in words is "one hundred ninety-eight million, nine hundred ninety-eight thousand, two hundred eighty-six".