422949589 has 2 divisors, whose sum is σ = 422949590. Its totient is φ = 422949588.

The previous prime is 422949547. The next prime is 422949607. The reversal of 422949589 is 985949224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 359747089 + 63202500 = 18967^2 + 7950^2 .

It is a cyclic number.

It is not a de Polignac number, because 422949589 - 2¹¹ = 422947541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422949529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211474794 + 211474795.

It is an arithmetic number, because the mean of its divisors is an integer number (211474795).

Almost surely, 2^422949589 is an apocalyptic number.

It is an amenable number.

422949589 is a deficient number, since it is larger than the sum of its proper divisors (1).

422949589 is an equidigital number, since it uses as much as digits as its factorization.

422949589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 52.

The square root of 422949589 is about 20565.7382313400. The cubic root of 422949589 is about 750.6362535707.

The spelling of 422949589 in words is "four hundred twenty-two million, nine hundred forty-nine thousand, five hundred eighty-nine".