199991676 has 24 divisors (see below), whose sum is σ = 473041744. Its totient is φ = 65750400.

The previous prime is 199991669. The next prime is 199991677. The reversal of 199991676 is 676199991.

199991676 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199991677) 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 7 ways as a sum of consecutive naturals, for example, 113275 + ... + 115026.

Almost surely, 2^199991676 is an apocalyptic number.

It is an amenable number.

199991676 is an abundant number, since it is smaller than the sum of its proper divisors (273050068).

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

199991676 is a wasteful number, since it uses less digits than its factorization.

199991676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228381 (or 228379 counting only the distinct ones).

The product of its digits is 1653372, while the sum is 57.

The square root of 199991676 is about 14141.8413228264. The cubic root of 199991676 is about 584.7954343555.

The spelling of 199991676 in words is "one hundred ninety-nine million, nine hundred ninety-one thousand, six hundred seventy-six".