622216747 has 2 divisors, whose sum is σ = 622216748. Its totient is φ = 622216746.

The previous prime is 622216703. The next prime is 622216757. The reversal of 622216747 is 747612226.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 622216747 - 2⁷ = 622216619 is a prime.

It is not a weakly prime, because it can be changed into another prime (622216757) 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, 311108373 + 311108374.

It is an arithmetic number, because the mean of its divisors is an integer number (311108374).

Almost surely, 2^622216747 is an apocalyptic number.

622216747 is a deficient number, since it is larger than the sum of its proper divisors (1).

622216747 is an equidigital number, since it uses as much as digits as its factorization.

622216747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 37.

The square root of 622216747 is about 24944.2728296497. The cubic root of 622216747 is about 853.7169392264.

The spelling of 622216747 in words is "six hundred twenty-two million, two hundred sixteen thousand, seven hundred forty-seven".