622616429 has 2 divisors, whose sum is σ = 622616430. Its totient is φ = 622616428.

The previous prime is 622616413. The next prime is 622616437. The reversal of 622616429 is 924616226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 619910404 + 2706025 = 24898^2 + 1645^2 .

It is a cyclic number.

It is not a de Polignac number, because 622616429 - 2⁴ = 622616413 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 622616392 and 622616401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622606429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311308214 + 311308215.

It is an arithmetic number, because the mean of its divisors is an integer number (311308215).

Almost surely, 2^622616429 is an apocalyptic number.

It is an amenable number.

622616429 is a deficient number, since it is larger than the sum of its proper divisors (1).

622616429 is an equidigital number, since it uses as much as digits as its factorization.

622616429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 622616429 is about 24952.2830418381. The cubic root of 622616429 is about 853.8996956165.

The spelling of 622616429 in words is "six hundred twenty-two million, six hundred sixteen thousand, four hundred twenty-nine".