208951339 has 2 divisors, whose sum is σ = 208951340. Its totient is φ = 208951338.

The previous prime is 208951307. The next prime is 208951357. The reversal of 208951339 is 933159802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208951339 - 2⁵ = 208951307 is a prime.

It is not a weakly prime, because it can be changed into another prime (208952339) 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, 104475669 + 104475670.

It is an arithmetic number, because the mean of its divisors is an integer number (104475670).

Almost surely, 2^208951339 is an apocalyptic number.

208951339 is a deficient number, since it is larger than the sum of its proper divisors (1).

208951339 is an equidigital number, since it uses as much as digits as its factorization.

208951339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 208951339 is about 14455.1492209524. The cubic root of 208951339 is about 593.4011534717.

The spelling of 208951339 in words is "two hundred eight million, nine hundred fifty-one thousand, three hundred thirty-nine".