422658959 has 2 divisors, whose sum is σ = 422658960. Its totient is φ = 422658958.

The previous prime is 422658937. The next prime is 422658989. The reversal of 422658959 is 959856224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422658959 - 2⁸ = 422658703 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 (422658919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211329479 + 211329480.

It is an arithmetic number, because the mean of its divisors is an integer number (211329480).

Almost surely, 2^422658959 is an apocalyptic number.

422658959 is a deficient number, since it is larger than the sum of its proper divisors (1).

422658959 is an equidigital number, since it uses as much as digits as its factorization.

422658959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 50.

The square root of 422658959 is about 20558.6711389623. The cubic root of 422658959 is about 750.4642808281.

The spelling of 422658959 in words is "four hundred twenty-two million, six hundred fifty-eight thousand, nine hundred fifty-nine".