426227717 has 2 divisors, whose sum is σ = 426227718. Its totient is φ = 426227716.

The previous prime is 426227701. The next prime is 426227731. The reversal of 426227717 is 717722624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271623361 + 154604356 = 16481^2 + 12434^2 .

It is a cyclic number.

It is not a de Polignac number, because 426227717 - 2⁴ = 426227701 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426227017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213113858 + 213113859.

It is an arithmetic number, because the mean of its divisors is an integer number (213113859).

Almost surely, 2^426227717 is an apocalyptic number.

It is an amenable number.

426227717 is a deficient number, since it is larger than the sum of its proper divisors (1).

426227717 is an equidigital number, since it uses as much as digits as its factorization.

426227717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65856, while the sum is 38.

The square root of 426227717 is about 20645.2831658953. The cubic root of 426227717 is about 752.5705673641.

The spelling of 426227717 in words is "four hundred twenty-six million, two hundred twenty-seven thousand, seven hundred seventeen".