622748393 has 2 divisors, whose sum is σ = 622748394. Its totient is φ = 622748392.

The previous prime is 622748377. The next prime is 622748417. The reversal of 622748393 is 393847226.

622748393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 434180569 + 188567824 = 20837^2 + 13732^2 .

It is a cyclic number.

It is not a de Polignac number, because 622748393 - 2⁴ = 622748377 is a prime.

It is not a weakly prime, because it can be changed into another prime (622741393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311374196 + 311374197.

It is an arithmetic number, because the mean of its divisors is an integer number (311374197).

Almost surely, 2^622748393 is an apocalyptic number.

It is an amenable number.

622748393 is a deficient number, since it is larger than the sum of its proper divisors (1).

622748393 is an equidigital number, since it uses as much as digits as its factorization.

622748393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 44.

The square root of 622748393 is about 24954.9272289061. The cubic root of 622748393 is about 853.9600195731.

The spelling of 622748393 in words is "six hundred twenty-two million, seven hundred forty-eight thousand, three hundred ninety-three".