208834739 has 2 divisors, whose sum is σ = 208834740. Its totient is φ = 208834738.

The previous prime is 208834721. The next prime is 208834741. The reversal of 208834739 is 937438802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208834739 - 2¹⁶ = 208769203 is a prime.

It is a super-2 number, since 2×208834739² = 87223896426396242, which contains 22 as substring.

Together with 208834741, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 208834739.

It is not a weakly prime, because it can be changed into another prime (208834709) 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, 104417369 + 104417370.

It is an arithmetic number, because the mean of its divisors is an integer number (104417370).

Almost surely, 2^208834739 is an apocalyptic number.

208834739 is a deficient number, since it is larger than the sum of its proper divisors (1).

208834739 is an equidigital number, since it uses as much as digits as its factorization.

208834739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 208834739 is about 14451.1154932759. The cubic root of 208834739 is about 593.2907554418.

The spelling of 208834739 in words is "two hundred eight million, eight hundred thirty-four thousand, seven hundred thirty-nine".