434323321 has 2 divisors, whose sum is σ = 434323322. Its totient is φ = 434323320.

The previous prime is 434323319. The next prime is 434323391. The reversal of 434323321 is 123323434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237314025 + 197009296 = 15405^2 + 14036^2 .

It is a cyclic number.

It is not a de Polignac number, because 434323321 - 2¹ = 434323319 is a prime.

Together with 434323319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (434323391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217161660 + 217161661.

It is an arithmetic number, because the mean of its divisors is an integer number (217161661).

Almost surely, 2^434323321 is an apocalyptic number.

It is an amenable number.

434323321 is a deficient number, since it is larger than the sum of its proper divisors (1).

434323321 is an equidigital number, since it uses as much as digits as its factorization.

434323321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 25.

The square root of 434323321 is about 20840.4251636093. The cubic root of 434323321 is about 757.3053934110.

Adding to 434323321 its reverse (123323434), we get a palindrome (557646755).

The spelling of 434323321 in words is "four hundred thirty-four million, three hundred twenty-three thousand, three hundred twenty-one".