6709739 has 4 divisors (see below), whose sum is σ = 6715824. Its totient is φ = 6703656.

The previous prime is 6709727. The next prime is 6709751. The reversal of 6709739 is 9379076.

6709739 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (6709727) and next prime (6709751).

It is a cyclic number.

It is not a de Polignac number, because 6709739 - 2⁴ = 6709723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6709696 and 6709705.

It is not an unprimeable number, because it can be changed into a prime (6709789) 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 3 ways as a sum of consecutive naturals, for example, 872 + ... + 3765.

It is an arithmetic number, because the mean of its divisors is an integer number (1678956).

Almost surely, 2^6709739 is an apocalyptic number.

6709739 is a deficient number, since it is larger than the sum of its proper divisors (6085).

6709739 is a wasteful number, since it uses less digits than its factorization.

6709739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6084.

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 6709739 is about 2590.3163899416. The cubic root of 6709739 is about 188.6116621539.

The spelling of 6709739 in words is "six million, seven hundred nine thousand, seven hundred thirty-nine".