12743443 has 2 divisors, whose sum is σ = 12743444. Its totient is φ = 12743442.

The previous prime is 12743431. The next prime is 12743447. The reversal of 12743443 is 34434721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12743443 - 2¹³ = 12735251 is a prime.

It is not a weakly prime, because it can be changed into another prime (12743447) 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 as a sum of consecutive naturals, namely, 6371721 + 6371722.

It is an arithmetic number, because the mean of its divisors is an integer number (6371722).

Almost surely, 2^12743443 is an apocalyptic number.

12743443 is a deficient number, since it is larger than the sum of its proper divisors (1).

12743443 is an equidigital number, since it uses as much as digits as its factorization.

12743443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 28.

The square root of 12743443 is about 3569.7959325429. The cubic root of 12743443 is about 233.5763818912.

The spelling of 12743443 in words is "twelve million, seven hundred forty-three thousand, four hundred forty-three".