622704317 has 2 divisors, whose sum is σ = 622704318. Its totient is φ = 622704316.

The previous prime is 622704301. The next prime is 622704343. The reversal of 622704317 is 713407226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 580376281 + 42328036 = 24091^2 + 6506^2 .

It is a cyclic number.

It is not a de Polignac number, because 622704317 - 2⁴ = 622704301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622704517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311352158 + 311352159.

It is an arithmetic number, because the mean of its divisors is an integer number (311352159).

Almost surely, 2^622704317 is an apocalyptic number.

It is an amenable number.

622704317 is a deficient number, since it is larger than the sum of its proper divisors (1).

622704317 is an equidigital number, since it uses as much as digits as its factorization.

622704317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 622704317 is about 24954.0441011071. The cubic root of 622704317 is about 853.9398723085.

The spelling of 622704317 in words is "six hundred twenty-two million, seven hundred four thousand, three hundred seventeen".