404409983 has 2 divisors, whose sum is σ = 404409984. Its totient is φ = 404409982.

The previous prime is 404409979. The next prime is 404410007. The reversal of 404409983 is 389904404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404409983 - 2² = 404409979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404409983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404409913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202204991 + 202204992.

It is an arithmetic number, because the mean of its divisors is an integer number (202204992).

Almost surely, 2^404409983 is an apocalyptic number.

404409983 is a deficient number, since it is larger than the sum of its proper divisors (1).

404409983 is an equidigital number, since it uses as much as digits as its factorization.

404409983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 404409983 is about 20109.9473644264. The cubic root of 404409983 is about 739.5041619936.

The spelling of 404409983 in words is "four hundred four million, four hundred nine thousand, nine hundred eighty-three".