404507023 has 2 divisors, whose sum is σ = 404507024. Its totient is φ = 404507022.

The previous prime is 404507021. The next prime is 404507069. The reversal of 404507023 is 320705404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404507023 - 2¹ = 404507021 is a prime.

Together with 404507021, 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 (404507021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202253511 + 202253512.

It is an arithmetic number, because the mean of its divisors is an integer number (202253512).

Almost surely, 2^404507023 is an apocalyptic number.

404507023 is a deficient number, since it is larger than the sum of its proper divisors (1).

404507023 is an equidigital number, since it uses as much as digits as its factorization.

404507023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 404507023 is about 20112.3599560072. The cubic root of 404507023 is about 739.5633063832.

The spelling of 404507023 in words is "four hundred four million, five hundred seven thousand, twenty-three".