208209083 has 2 divisors, whose sum is σ = 208209084. Its totient is φ = 208209082.

The previous prime is 208209037. The next prime is 208209097. The reversal of 208209083 is 380902802.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208209083 - 2⁶ = 208209019 is a prime.

It is not a weakly prime, because it can be changed into another prime (208209283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104104541 + 104104542.

It is an arithmetic number, because the mean of its divisors is an integer number (104104542).

Almost surely, 2^208209083 is an apocalyptic number.

208209083 is a deficient number, since it is larger than the sum of its proper divisors (1).

208209083 is an equidigital number, since it uses as much as digits as its factorization.

208209083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 208209083 is about 14429.4519299937. The cubic root of 208209083 is about 592.6976752639.

The spelling of 208209083 in words is "two hundred eight million, two hundred nine thousand, eighty-three".