622625693 has 2 divisors, whose sum is σ = 622625694. Its totient is φ = 622625692.

The previous prime is 622625671. The next prime is 622625749. The reversal of 622625693 is 396526226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 615933124 + 6692569 = 24818^2 + 2587^2 .

It is a cyclic number.

It is not a de Polignac number, because 622625693 - 2¹⁰ = 622624669 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 622625693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622625093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311312846 + 311312847.

It is an arithmetic number, because the mean of its divisors is an integer number (311312847).

Almost surely, 2^622625693 is an apocalyptic number.

It is an amenable number.

622625693 is a deficient number, since it is larger than the sum of its proper divisors (1).

622625693 is an equidigital number, since it uses as much as digits as its factorization.

622625693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 41.

The square root of 622625693 is about 24952.4686754638. The cubic root of 622625693 is about 853.9039306946.

The spelling of 622625693 in words is "six hundred twenty-two million, six hundred twenty-five thousand, six hundred ninety-three".