404959 has 2 divisors, whose sum is σ = 404960. Its totient is φ = 404958.

The previous prime is 404951. The next prime is 404969. The reversal of 404959 is 959404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404959 - 2³ = 404951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404951) 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, 202479 + 202480.

It is an arithmetic number, because the mean of its divisors is an integer number (202480).

2⁴⁰⁴⁹⁵⁹ is an apocalyptic number.

404959 is a deficient number, since it is larger than the sum of its proper divisors (1).

404959 is an equidigital number, since it uses as much as digits as its factorization.

404959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 404959 is about 636.3638896103. The cubic root of 404959 is about 73.9838654865.

It can be divided in two parts, 40495 and 9, that added together give a palindrome (40504).

The spelling of 404959 in words is "four hundred four thousand, nine hundred fifty-nine".