199589983 has 2 divisors, whose sum is σ = 199589984. Its totient is φ = 199589982.

The previous prime is 199589969. The next prime is 199589993. The reversal of 199589983 is 389985991.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (389985991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199589983 - 2¹⁷ = 199458911 is a prime.

It is a super-2 number, since 2×199589983² = 79672322627880578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199589903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99794991 + 99794992.

It is an arithmetic number, because the mean of its divisors is an integer number (99794992).

Almost surely, 2^199589983 is an apocalyptic number.

199589983 is a deficient number, since it is larger than the sum of its proper divisors (1).

199589983 is an equidigital number, since it uses as much as digits as its factorization.

199589983 is an odious number, because the sum of its binary digits is odd.

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

The square root of 199589983 is about 14127.6318963937. The cubic root of 199589983 is about 584.4036419107.

The spelling of 199589983 in words is "one hundred ninety-nine million, five hundred eighty-nine thousand, nine hundred eighty-three".