422872669 has 2 divisors, whose sum is σ = 422872670. Its totient is φ = 422872668.

The previous prime is 422872649. The next prime is 422872717. The reversal of 422872669 is 966278224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398002500 + 24870169 = 19950^2 + 4987^2 .

It is a cyclic number.

It is not a de Polignac number, because 422872669 - 2⁹ = 422872157 is a prime.

It is a super-2 number, since 2×422872669² = 357642588374367122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422872649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211436334 + 211436335.

It is an arithmetic number, because the mean of its divisors is an integer number (211436335).

Almost surely, 2^422872669 is an apocalyptic number.

It is an amenable number.

422872669 is a deficient number, since it is larger than the sum of its proper divisors (1).

422872669 is an equidigital number, since it uses as much as digits as its factorization.

422872669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 46.

The square root of 422872669 is about 20563.8680456766. The cubic root of 422872669 is about 750.5907458296.

The spelling of 422872669 in words is "four hundred twenty-two million, eight hundred seventy-two thousand, six hundred sixty-nine".