422331673 has 2 divisors, whose sum is σ = 422331674. Its totient is φ = 422331672.

The previous prime is 422331661. The next prime is 422331703. The reversal of 422331673 is 376133224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379782144 + 42549529 = 19488^2 + 6523^2 .

It is a cyclic number.

It is not a de Polignac number, because 422331673 - 2⁵ = 422331641 is a prime.

It is not a weakly prime, because it can be changed into another prime (422335673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211165836 + 211165837.

It is an arithmetic number, because the mean of its divisors is an integer number (211165837).

Almost surely, 2^422331673 is an apocalyptic number.

It is an amenable number.

422331673 is a deficient number, since it is larger than the sum of its proper divisors (1).

422331673 is an equidigital number, since it uses as much as digits as its factorization.

422331673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 31.

The square root of 422331673 is about 20550.7097930947. The cubic root of 422331673 is about 750.2705234481.

Adding to 422331673 its reverse (376133224), we get a palindrome (798464897).

The spelling of 422331673 in words is "four hundred twenty-two million, three hundred thirty-one thousand, six hundred seventy-three".