622655773 has 2 divisors, whose sum is σ = 622655774. Its totient is φ = 622655772.

The previous prime is 622655741. The next prime is 622655777. The reversal of 622655773 is 377556226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 554461209 + 68194564 = 23547^2 + 8258^2 .

It is a cyclic number.

It is not a de Polignac number, because 622655773 - 2⁵ = 622655741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622655777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311327886 + 311327887.

It is an arithmetic number, because the mean of its divisors is an integer number (311327887).

Almost surely, 2^622655773 is an apocalyptic number.

It is an amenable number.

622655773 is a deficient number, since it is larger than the sum of its proper divisors (1).

622655773 is an equidigital number, since it uses as much as digits as its factorization.

622655773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 43.

The square root of 622655773 is about 24953.0714141566. The cubic root of 622655773 is about 853.9176816084.

The spelling of 622655773 in words is "six hundred twenty-two million, six hundred fifty-five thousand, seven hundred seventy-three".