2743943 has 2 divisors, whose sum is σ = 2743944. Its totient is φ = 2743942.

The previous prime is 2743933. The next prime is 2743967. The reversal of 2743943 is 3493472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2743943 - 2¹⁰ = 2742919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2743933) 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, 1371971 + 1371972.

It is an arithmetic number, because the mean of its divisors is an integer number (1371972).

2^2743943 is an apocalyptic number.

2743943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2743943 is an equidigital number, since it uses as much as digits as its factorization.

2743943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

The square root of 2743943 is about 1656.4851342526. The cubic root of 2743943 is about 139.9990306055. Note that the first 3 decimals are identical.

The spelling of 2743943 in words is "two million, seven hundred forty-three thousand, nine hundred forty-three".