6746839 has 16 divisors (see below), whose sum is σ = 7677216. Its totient is φ = 5924160.

The previous prime is 6746819. The next prime is 6746849. The reversal of 6746839 is 9386476.

It is a happy number.

It is not a de Polignac number, because 6746839 - 2¹⁹ = 6222551 is a prime.

It is a Duffinian number.

6746839 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6746795 and 6746804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6746819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49179 + ... + 49315.

It is an arithmetic number, because the mean of its divisors is an integer number (479826).

Almost surely, 2^6746839 is an apocalyptic number.

6746839 is a deficient number, since it is larger than the sum of its proper divisors (930377).

6746839 is a wasteful number, since it uses less digits than its factorization.

6746839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 185 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 6746839 is about 2597.4678053828. The cubic root of 6746839 is about 188.9586520599.

The spelling of 6746839 in words is "six million, seven hundred forty-six thousand, eight hundred thirty-nine".