622965953 has 2 divisors, whose sum is σ = 622965954. Its totient is φ = 622965952.

The previous prime is 622965947. The next prime is 622965997. The reversal of 622965953 is 359569226.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 470369344 + 152596609 = 21688^2 + 12353^2 .

It is a cyclic number.

It is not a de Polignac number, because 622965953 - 2²² = 618771649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 622965898 and 622965907.

It is not a weakly prime, because it can be changed into another prime (622965923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311482976 + 311482977.

It is an arithmetic number, because the mean of its divisors is an integer number (311482977).

Almost surely, 2^622965953 is an apocalyptic number.

It is an amenable number.

622965953 is a deficient number, since it is larger than the sum of its proper divisors (1).

622965953 is an equidigital number, since it uses as much as digits as its factorization.

622965953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 47.

The square root of 622965953 is about 24959.2859072530. The cubic root of 622965953 is about 854.0594529413.

The spelling of 622965953 in words is "six hundred twenty-two million, nine hundred sixty-five thousand, nine hundred fifty-three".