208199983 has 2 divisors, whose sum is σ = 208199984. Its totient is φ = 208199982.

The previous prime is 208199963. The next prime is 208200001. The reversal of 208199983 is 389991802.

208199983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208199983 - 2⁵ = 208199951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208199923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104099991 + 104099992.

It is an arithmetic number, because the mean of its divisors is an integer number (104099992).

Almost surely, 2^208199983 is an apocalyptic number.

208199983 is a deficient number, since it is larger than the sum of its proper divisors (1).

208199983 is an equidigital number, since it uses as much as digits as its factorization.

208199983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 208199983 is about 14429.1365992564. The cubic root of 208199983 is about 592.6890403101.

The spelling of 208199983 in words is "two hundred eight million, one hundred ninety-nine thousand, nine hundred eighty-three".