208022939 has 2 divisors, whose sum is σ = 208022940. Its totient is φ = 208022938.

The previous prime is 208022921. The next prime is 208022951. The reversal of 208022939 is 939220802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 208022939 - 2²⁴ = 191245723 is a prime.

It is a Chen prime.

It is equal to p_11498390 and since 208022939 and 11498390 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 208022899 and 208022908.

It is not a weakly prime, because it can be changed into another prime (208022239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104011469 + 104011470.

It is an arithmetic number, because the mean of its divisors is an integer number (104011470).

Almost surely, 2^208022939 is an apocalyptic number.

208022939 is a deficient number, since it is larger than the sum of its proper divisors (1).

208022939 is an equidigital number, since it uses as much as digits as its factorization.

208022939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 208022939 is about 14423.0003466685. Note that the first 3 decimals coincide. The cubic root of 208022939 is about 592.5209938736.

The spelling of 208022939 in words is "two hundred eight million, twenty-two thousand, nine hundred thirty-nine".