404312023 has 2 divisors, whose sum is σ = 404312024. Its totient is φ = 404312022.

The previous prime is 404312021. The next prime is 404312053. The reversal of 404312023 is 320213404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404312023 - 2¹ = 404312021 is a prime.

Together with 404312021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404312021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202156011 + 202156012.

It is an arithmetic number, because the mean of its divisors is an integer number (202156012).

Almost surely, 2^404312023 is an apocalyptic number.

404312023 is a deficient number, since it is larger than the sum of its proper divisors (1).

404312023 is an equidigital number, since it uses as much as digits as its factorization.

404312023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 404312023 is about 20107.5116063624. The cubic root of 404312023 is about 739.4444472810. Note that the first 5 decimals are identical.

Adding to 404312023 its reverse (320213404), we get a palindrome (724525427).

The spelling of 404312023 in words is "four hundred four million, three hundred twelve thousand, twenty-three".