199727396 has 24 divisors (see below), whose sum is σ = 382007136. Its totient is φ = 90616320.

The previous prime is 199727383. The next prime is 199727413. The reversal of 199727396 is 693727991.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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, 21455 + ... + 29321.

It is an arithmetic number, because the mean of its divisors is an integer number (15916964).

Almost surely, 2^199727396 is an apocalyptic number.

It is an amenable number.

199727396 is a deficient number, since it is larger than the sum of its proper divisors (182279740).

199727396 is a wasteful number, since it uses less digits than its factorization.

199727396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8459 (or 8457 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 53.

The square root of 199727396 is about 14132.4943304429. The cubic root of 199727396 is about 584.5377271893.

The spelling of 199727396 in words is "one hundred ninety-nine million, seven hundred twenty-seven thousand, three hundred ninety-six".