6434321 has 2 divisors, whose sum is σ = 6434322. Its totient is φ = 6434320.

The previous prime is 6434303. The next prime is 6434371. The reversal of 6434321 is 1234346.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6431296 + 3025 = 2536^2 + 55^2 .

It is a cyclic number.

It is not a de Polignac number, because 6434321 - 2¹⁴ = 6417937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6434371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3217160 + 3217161.

It is an arithmetic number, because the mean of its divisors is an integer number (3217161).

Almost surely, 2^6434321 is an apocalyptic number.

It is an amenable number.

6434321 is a deficient number, since it is larger than the sum of its proper divisors (1).

6434321 is an equidigital number, since it uses as much as digits as its factorization.

6434321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 23.

The square root of 6434321 is about 2536.5963415569. The cubic root of 6434321 is about 185.9948451186.

Adding to 6434321 its reverse (1234346), we get a palindrome (7668667).

The spelling of 6434321 in words is "six million, four hundred thirty-four thousand, three hundred twenty-one".