405323 has 2 divisors, whose sum is σ = 405324. Its totient is φ = 405322.

The previous prime is 405299. The next prime is 405341. The reversal of 405323 is 323504.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405323 is a prime.

It is not a weakly prime, because it can be changed into another prime (405343) 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, 202661 + 202662.

It is an arithmetic number, because the mean of its divisors is an integer number (202662).

2⁴⁰⁵³²³ is an apocalyptic number.

405323 is a deficient number, since it is larger than the sum of its proper divisors (1).

405323 is an equidigital number, since it uses as much as digits as its factorization.

405323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 405323 is about 636.6498252572. The cubic root of 405323 is about 74.0060258059.

Adding to 405323 its reverse (323504), we get a palindrome (728827).

The spelling of 405323 in words is "four hundred five thousand, three hundred twenty-three".