2943291 has 16 divisors (see below), whose sum is σ = 4261376. Its totient is φ = 1796256.

The previous prime is 2943289. The next prime is 2943301. The reversal of 2943291 is 1923492.

It is not a de Polignac number, because 2943291 - 2¹ = 2943289 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2943191) 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 in 15 ways as a sum of consecutive naturals, for example, 6126 + ... + 6588.

It is an arithmetic number, because the mean of its divisors is an integer number (266336).

2^2943291 is an apocalyptic number.

2943291 is a deficient number, since it is larger than the sum of its proper divisors (1318085).

2943291 is a wasteful number, since it uses less digits than its factorization.

2943291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642.

The product of its digits is 3888, while the sum is 30.

The square root of 2943291 is about 1715.6022266248. The cubic root of 2943291 is about 143.3104085684.

The spelling of 2943291 in words is "two million, nine hundred forty-three thousand, two hundred ninety-one".