622650629 has 2 divisors, whose sum is σ = 622650630. Its totient is φ = 622650628.

The previous prime is 622650601. The next prime is 622650643. The reversal of 622650629 is 926056226.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 565345729 + 57304900 = 23777^2 + 7570^2 .

It is a cyclic number.

It is not a de Polignac number, because 622650629 - 2⁸ = 622650373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 622650592 and 622650601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622650529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311325314 + 311325315.

It is an arithmetic number, because the mean of its divisors is an integer number (311325315).

Almost surely, 2^622650629 is an apocalyptic number.

It is an amenable number.

622650629 is a deficient number, since it is larger than the sum of its proper divisors (1).

622650629 is an equidigital number, since it uses as much as digits as its factorization.

622650629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 622650629 is about 24952.9683404600. The cubic root of 622650629 is about 853.9153300872.

The spelling of 622650629 in words is "six hundred twenty-two million, six hundred fifty thousand, six hundred twenty-nine".