622222829 has 2 divisors, whose sum is σ = 622222830. Its totient is φ = 622222828.

The previous prime is 622222819. The next prime is 622222859. The reversal of 622222829 is 928222226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 560600329 + 61622500 = 23677^2 + 7850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622222829 is a prime.

It is a super-2 number, since 2×622222829² = 774322497857526482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622222819) 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, 311111414 + 311111415.

It is an arithmetic number, because the mean of its divisors is an integer number (311111415).

Almost surely, 2^622222829 is an apocalyptic number.

It is an amenable number.

622222829 is a deficient number, since it is larger than the sum of its proper divisors (1).

622222829 is an equidigital number, since it uses as much as digits as its factorization.

622222829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 35.

The square root of 622222829 is about 24944.3947411037. The cubic root of 622222829 is about 853.7197208345.

The spelling of 622222829 in words is "six hundred twenty-two million, two hundred twenty-two thousand, eight hundred twenty-nine".