422605969 has 2 divisors, whose sum is σ = 422605970. Its totient is φ = 422605968.

The previous prime is 422605943. The next prime is 422606053. The reversal of 422605969 is 969506224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316412944 + 106193025 = 17788^2 + 10305^2 .

It is a cyclic number.

It is not a de Polignac number, because 422605969 - 2²⁷ = 288388241 is a prime.

It is a super-2 number, since 2×422605969² = 357191610068857922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (422605069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211302984 + 211302985.

It is an arithmetic number, because the mean of its divisors is an integer number (211302985).

Almost surely, 2^422605969 is an apocalyptic number.

It is an amenable number.

422605969 is a deficient number, since it is larger than the sum of its proper divisors (1).

422605969 is an equidigital number, since it uses as much as digits as its factorization.

422605969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 422605969 is about 20557.3823479547. The cubic root of 422605969 is about 750.4329168774.

The spelling of 422605969 in words is "four hundred twenty-two million, six hundred five thousand, nine hundred sixty-nine".