404983 has 2 divisors, whose sum is σ = 404984. Its totient is φ = 404982.

The previous prime is 404981. The next prime is 405001. The reversal of 404983 is 389404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404983 - 2¹ = 404981 is a prime.

It is a super-2 number, since 2×404983² = 328022460578, which contains 22 as substring.

Together with 404981, it forms a pair of twin primes.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404981) 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, 202491 + 202492.

It is an arithmetic number, because the mean of its divisors is an integer number (202492).

2⁴⁰⁴⁹⁸³ is an apocalyptic number.

404983 is a deficient number, since it is larger than the sum of its proper divisors (1).

404983 is an equidigital number, since it uses as much as digits as its factorization.

404983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 404983 is about 636.3827464663. The cubic root of 404983 is about 73.9853270153.

The spelling of 404983 in words is "four hundred four thousand, nine hundred eighty-three".