2943943 has 4 divisors (see below), whose sum is σ = 2962168. Its totient is φ = 2925720.

The previous prime is 2943937. The next prime is 2943947. The reversal of 2943943 is 3493492.

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

It is a cyclic number.

It is not a de Polignac number, because 2943943 - 2⁵ = 2943911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2943899 and 2943908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2943947) 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, 8868 + ... + 9193.

It is an arithmetic number, because the mean of its divisors is an integer number (740542).

2^2943943 is an apocalyptic number.

2943943 is a deficient number, since it is larger than the sum of its proper divisors (18225).

2943943 is a wasteful number, since it uses less digits than its factorization.

2943943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18224.

The product of its digits is 23328, while the sum is 34.

The square root of 2943943 is about 1715.7922368399. The cubic root of 2943943 is about 143.3209898631.

The spelling of 2943943 in words is "two million, nine hundred forty-three thousand, nine hundred forty-three".