199959883 has 2 divisors, whose sum is σ = 199959884. Its totient is φ = 199959882.

The previous prime is 199959871. The next prime is 199959887. The reversal of 199959883 is 388959991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199959883 - 2⁹ = 199959371 is a prime.

It is not a weakly prime, because it can be changed into another prime (199959887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99979941 + 99979942.

It is an arithmetic number, because the mean of its divisors is an integer number (99979942).

Almost surely, 2^199959883 is an apocalyptic number.

199959883 is a deficient number, since it is larger than the sum of its proper divisors (1).

199959883 is an equidigital number, since it uses as much as digits as its factorization.

199959883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6298560, while the sum is 61.

The square root of 199959883 is about 14140.7172024618. The cubic root of 199959883 is about 584.7644440881.

The spelling of 199959883 in words is "one hundred ninety-nine million, nine hundred fifty-nine thousand, eight hundred eighty-three".