2003983 has 4 divisors (see below), whose sum is σ = 2041848. Its totient is φ = 1966120.

The previous prime is 2003971. The next prime is 2003999. The reversal of 2003983 is 3893002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3893002 = 2 ⋅1946501.

It is a cyclic number.

It is not a de Polignac number, because 2003983 - 2⁵ = 2003951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18853 + ... + 18958.

It is an arithmetic number, because the mean of its divisors is an integer number (510462).

2^2003983 is an apocalyptic number.

2003983 is a deficient number, since it is larger than the sum of its proper divisors (37865).

2003983 is an equidigital number, since it uses as much as digits as its factorization.

2003983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37864.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2003983 is about 1415.6210651159. The cubic root of 2003983 is about 126.0756872883.

Adding to 2003983 its reverse (3893002), we get a palindrome (5896985).

The spelling of 2003983 in words is "two million, three thousand, nine hundred eighty-three".