2183943 has 4 divisors (see below), whose sum is σ = 2911928. Its totient is φ = 1455960.

The previous prime is 2183921. The next prime is 2183953. The reversal of 2183943 is 3493812.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2183943 - 2⁹ = 2183431 is a prime.

It is a D-number.

It is a Duffinian number.

2183943 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2183943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363988 + ... + 363993.

It is an arithmetic number, because the mean of its divisors is an integer number (727982).

2^2183943 is an apocalyptic number.

2183943 is a deficient number, since it is larger than the sum of its proper divisors (727985).

2183943 is an equidigital number, since it uses as much as digits as its factorization.

2183943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727984.

The product of its digits is 5184, while the sum is 30.

The square root of 2183943 is about 1477.8169710759. The cubic root of 2183943 is about 129.7419536072.

The spelling of 2183943 in words is "two million, one hundred eighty-three thousand, nine hundred forty-three".