6943839 has 12 divisors (see below), whose sum is σ = 10770264. Its totient is φ = 3967824.

The previous prime is 6943819. The next prime is 6943877. The reversal of 6943839 is 9383496.

It is not a de Polignac number, because 6943839 - 2⁷ = 6943711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6943839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6943819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23472 + ... + 23765.

It is an arithmetic number, because the mean of its divisors is an integer number (897522).

Almost surely, 2^6943839 is an apocalyptic number.

6943839 is a deficient number, since it is larger than the sum of its proper divisors (3826425).

6943839 is a wasteful number, since it uses less digits than its factorization.

6943839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47254 (or 47247 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 6943839 is about 2635.1165059633. The cubic root of 6943839 is about 190.7801624441.

Adding to 6943839 its product of digits (139968), we get a palindrome (7083807).

The spelling of 6943839 in words is "six million, nine hundred forty-three thousand, eight hundred thirty-nine".