208022239 has 2 divisors, whose sum is σ = 208022240. Its totient is φ = 208022238.

The previous prime is 208022219. The next prime is 208022299. The reversal of 208022239 is 932220802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 208022239 - 2⁵ = 208022207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208022209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104011119 + 104011120.

It is an arithmetic number, because the mean of its divisors is an integer number (104011120).

Almost surely, 2^208022239 is an apocalyptic number.

208022239 is a deficient number, since it is larger than the sum of its proper divisors (1).

208022239 is an equidigital number, since it uses as much as digits as its factorization.

208022239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 208022239 is about 14422.9760798526. The cubic root of 208022239 is about 592.5203292591.

The spelling of 208022239 in words is "two hundred eight million, twenty-two thousand, two hundred thirty-nine".