6681717 has 16 divisors (see below), whose sum is σ = 11313280. Its totient is φ = 3818016.

The previous prime is 6681683. The next prime is 6681721. The reversal of 6681717 is 7171866.

It is a happy number.

It is not a de Polignac number, because 6681717 - 2⁷ = 6681589 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 (6681817) 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, 17488 + ... + 17865.

It is an arithmetic number, because the mean of its divisors is an integer number (707080).

Almost surely, 2^6681717 is an apocalyptic number.

It is an amenable number.

6681717 is a deficient number, since it is larger than the sum of its proper divisors (4631563).

6681717 is a wasteful number, since it uses less digits than its factorization.

6681717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35369 (or 35363 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 6681717 is about 2584.9017389448. The cubic root of 6681717 is about 188.3487283906.

The spelling of 6681717 in words is "six million, six hundred eighty-one thousand, seven hundred seventeen".