622965997 has 2 divisors, whose sum is σ = 622965998. Its totient is φ = 622965996.

The previous prime is 622965953. The next prime is 622966009. The reversal of 622965997 is 799569226.

It is a happy number.

622965997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 370601001 + 252364996 = 19251^2 + 15886^2 .

It is a cyclic number.

It is not a de Polignac number, because 622965997 - 2¹⁵ = 622933229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622965947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311482998 + 311482999.

It is an arithmetic number, because the mean of its divisors is an integer number (311482999).

Almost surely, 2^622965997 is an apocalyptic number.

It is an amenable number.

622965997 is a deficient number, since it is larger than the sum of its proper divisors (1).

622965997 is an equidigital number, since it uses as much as digits as its factorization.

622965997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 55.

The square root of 622965997 is about 24959.2867886885. The cubic root of 622965997 is about 854.0594730487.

The spelling of 622965997 in words is "six hundred twenty-two million, nine hundred sixty-five thousand, nine hundred ninety-seven".