199785676 has 12 divisors (see below), whose sum is σ = 353087280. Its totient is φ = 98903600.

The previous prime is 199785671. The next prime is 199785679. The reversal of 199785676 is 676587991.

It is a self number, because there is not a number n which added to its sum of digits gives 199785676.

It is not an unprimeable number, because it can be changed into a prime (199785671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246856 + ... + 247663.

It is an arithmetic number, because the mean of its divisors is an integer number (29423940).

Almost surely, 2^199785676 is an apocalyptic number.

It is an amenable number.

199785676 is a deficient number, since it is larger than the sum of its proper divisors (153301604).

199785676 is a wasteful number, since it uses less digits than its factorization.

199785676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494624 (or 494622 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 58.

The square root of 199785676 is about 14134.5560949044. The cubic root of 199785676 is about 584.5945772533.

The spelling of 199785676 in words is "one hundred ninety-nine million, seven hundred eighty-five thousand, six hundred seventy-six".