199397698 has 16 divisors (see below), whose sum is σ = 305091360. Its totient is φ = 97710976.

The previous prime is 199397689. The next prime is 199397701. The reversal of 199397698 is 896793991.

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, 39261 + ... + 44047.

It is an arithmetic number, because the mean of its divisors is an integer number (19068210).

Almost surely, 2^199397698 is an apocalyptic number.

199397698 is a deficient number, since it is larger than the sum of its proper divisors (105693662).

199397698 is a wasteful number, since it uses less digits than its factorization.

199397698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201.

The product of its digits is 6613488, while the sum is 61.

The square root of 199397698 is about 14120.8249759000. The cubic root of 199397698 is about 584.2159101112.

The spelling of 199397698 in words is "one hundred ninety-nine million, three hundred ninety-seven thousand, six hundred ninety-eight".