2943491 has 2 divisors, whose sum is σ = 2943492. Its totient is φ = 2943490.

The previous prime is 2943467. The next prime is 2943503. The reversal of 2943491 is 1943492.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2943491 - 2⁶ = 2943427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2943191) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1471745 + 1471746.

It is an arithmetic number, because the mean of its divisors is an integer number (1471746).

2^2943491 is an apocalyptic number.

2943491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2943491 is an equidigital number, since it uses as much as digits as its factorization.

2943491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 2943491 is about 1715.6605142044. The cubic root of 2943491 is about 143.3136545305.

Subtracting from 2943491 its reverse (1943492), we obtain a palindrome (999999).

The spelling of 2943491 in words is "two million, nine hundred forty-three thousand, four hundred ninety-one".