434023321 has 2 divisors, whose sum is σ = 434023322. Its totient is φ = 434023320.

The previous prime is 434023301. The next prime is 434023391. The reversal of 434023321 is 123320434.

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., 398561296 + 35462025 = 19964^2 + 5955^2 .

It is a cyclic number.

It is not a de Polignac number, because 434023321 - 2²⁷ = 299805593 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 434023292 and 434023301.

It is not a weakly prime, because it can be changed into another prime (434023301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217011660 + 217011661.

It is an arithmetic number, because the mean of its divisors is an integer number (217011661).

Almost surely, 2^434023321 is an apocalyptic number.

It is an amenable number.

434023321 is a deficient number, since it is larger than the sum of its proper divisors (1).

434023321 is an equidigital number, since it uses as much as digits as its factorization.

434023321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 434023321 is about 20833.2263703921. The cubic root of 434023321 is about 757.1309888170.

Adding to 434023321 its reverse (123320434), we get a palindrome (557343755).

The spelling of 434023321 in words is "four hundred thirty-four million, twenty-three thousand, three hundred twenty-one".