12993443 has 4 divisors (see below), whose sum is σ = 13001208. Its totient is φ = 12985680.

The previous prime is 12993419. The next prime is 12993451. The reversal of 12993443 is 34439921.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12993443 - 2¹⁴ = 12977059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12993493) 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, 221 + ... + 5102.

It is an arithmetic number, because the mean of its divisors is an integer number (3250302).

Almost surely, 2^12993443 is an apocalyptic number.

12993443 is a deficient number, since it is larger than the sum of its proper divisors (7765).

12993443 is an equidigital number, since it uses as much as digits as its factorization.

12993443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7764.

The product of its digits is 23328, while the sum is 35.

The square root of 12993443 is about 3604.6418684801. The cubic root of 12993443 is about 235.0939295556.

The spelling of 12993443 in words is "twelve million, nine hundred ninety-three thousand, four hundred forty-three".