622426513 has 2 divisors, whose sum is σ = 622426514. Its totient is φ = 622426512.

The previous prime is 622426471. The next prime is 622426517. The reversal of 622426513 is 315624226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395532544 + 226893969 = 19888^2 + 15063^2 .

It is a cyclic number.

It is not a de Polignac number, because 622426513 - 2⁹ = 622426001 is a prime.

It is not a weakly prime, because it can be changed into another prime (622426517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311213256 + 311213257.

It is an arithmetic number, because the mean of its divisors is an integer number (311213257).

Almost surely, 2^622426513 is an apocalyptic number.

It is an amenable number.

622426513 is a deficient number, since it is larger than the sum of its proper divisors (1).

622426513 is an equidigital number, since it uses as much as digits as its factorization.

622426513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 622426513 is about 24948.4771679556. The cubic root of 622426513 is about 853.8128654278.

The spelling of 622426513 in words is "six hundred twenty-two million, four hundred twenty-six thousand, five hundred thirteen".