6890709 has 8 divisors (see below), whose sum is σ = 10500160. Its totient is φ = 3937536.

The previous prime is 6890701. The next prime is 6890713. The reversal of 6890709 is 9070986.

6890709 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6890709 - 2³ = 6890701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6890701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164044 + ... + 164085.

It is an arithmetic number, because the mean of its divisors is an integer number (1312520).

Almost surely, 2^6890709 is an apocalyptic number.

It is an amenable number.

6890709 is a deficient number, since it is larger than the sum of its proper divisors (3609451).

6890709 is a wasteful number, since it uses less digits than its factorization.

6890709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328139.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 6890709 is about 2625.0159999512. The cubic root of 6890709 is about 190.2923385206.

The spelling of 6890709 in words is "six million, eight hundred ninety thousand, seven hundred nine".