198936199 has 16 divisors (see below), whose sum is σ = 251732736. Its totient is φ = 152697600.

The previous prime is 198936197. The next prime is 198936209. The reversal of 198936199 is 991639891.

It is not a de Polignac number, because 198936199 - 2¹ = 198936197 is a prime.

It is a super-2 number, since 2×198936199² = 79151222545135202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198936197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14122 + ... + 24439.

It is an arithmetic number, because the mean of its divisors is an integer number (15733296).

Almost surely, 2^198936199 is an apocalyptic number.

198936199 is a deficient number, since it is larger than the sum of its proper divisors (52796537).

198936199 is a wasteful number, since it uses less digits than its factorization.

198936199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38646.

The product of its digits is 944784, while the sum is 55.

The square root of 198936199 is about 14104.4744318957. The cubic root of 198936199 is about 583.7648461759.

The spelling of 198936199 in words is "one hundred ninety-eight million, nine hundred thirty-six thousand, one hundred ninety-nine".