430823 has 2 divisors, whose sum is σ = 430824. Its totient is φ = 430822.

The previous prime is 430819. The next prime is 430841. The reversal of 430823 is 328034.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 430823 - 2² = 430819 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 430795 and 430804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (430873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215411 + 215412.

It is an arithmetic number, because the mean of its divisors is an integer number (215412).

2⁴³⁰⁸²³ is an apocalyptic number.

430823 is a deficient number, since it is larger than the sum of its proper divisors (1).

430823 is an equidigital number, since it uses as much as digits as its factorization.

430823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 430823 is about 656.3710840675. The cubic root of 430823 is about 75.5265465177.

Adding to 430823 its reverse (328034), we get a palindrome (758857).

The spelling of 430823 in words is "four hundred thirty thousand, eight hundred twenty-three".