6844739 has 4 divisors (see below), whose sum is σ = 7467000. Its totient is φ = 6222480.

The previous prime is 6844709. The next prime is 6844757. The reversal of 6844739 is 9374486.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6844739 - 2⁸ = 6844483 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6844696 and 6844705.

It is not an unprimeable number, because it can be changed into a prime (6844709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311114 + ... + 311135.

It is an arithmetic number, because the mean of its divisors is an integer number (1866750).

Almost surely, 2^6844739 is an apocalyptic number.

6844739 is a deficient number, since it is larger than the sum of its proper divisors (622261).

6844739 is a wasteful number, since it uses less digits than its factorization.

6844739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622260.

The product of its digits is 145152, while the sum is 41.

The square root of 6844739 is about 2616.2452102202. The cubic root of 6844739 is about 189.8682281155.

It can be divided in two parts, 68447 and 39, that added together give a palindrome (68486).

The spelling of 6844739 in words is "six million, eight hundred forty-four thousand, seven hundred thirty-nine".