404965423 has 2 divisors, whose sum is σ = 404965424. Its totient is φ = 404965422.

The previous prime is 404965403. The next prime is 404965427. The reversal of 404965423 is 324569404.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404965423 - 2⁵ = 404965391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404965427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202482711 + 202482712.

It is an arithmetic number, because the mean of its divisors is an integer number (202482712).

Almost surely, 2^404965423 is an apocalyptic number.

404965423 is a deficient number, since it is larger than the sum of its proper divisors (1).

404965423 is an equidigital number, since it uses as much as digits as its factorization.

404965423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 404965423 is about 20123.7527066897. The cubic root of 404965423 is about 739.8425663382.

The spelling of 404965423 in words is "four hundred four million, nine hundred sixty-five thousand, four hundred twenty-three".