2943939 has 8 divisors (see below), whose sum is σ = 4008960. Its totient is φ = 1920776.

The previous prime is 2943937. The next prime is 2943947. The reversal of 2943939 is 9393492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2943939 - 2¹ = 2943937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2943897 and 2943906.

It is not an unprimeable number, because it can be changed into a prime (2943937) 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 7 ways as a sum of consecutive naturals, for example, 10299 + ... + 10580.

It is an arithmetic number, because the mean of its divisors is an integer number (501120).

2^2943939 is an apocalyptic number.

2943939 is a deficient number, since it is larger than the sum of its proper divisors (1065021).

2943939 is a wasteful number, since it uses less digits than its factorization.

2943939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20929.

The product of its digits is 52488, while the sum is 39.

The square root of 2943939 is about 1715.7910711972. The cubic root of 2943939 is about 143.3209249519.

The spelling of 2943939 in words is "two million, nine hundred forty-three thousand, nine hundred thirty-nine".