6688714 has 8 divisors (see below), whose sum is σ = 10075428. Its totient is φ = 3330240.

The previous prime is 6688691. The next prime is 6688723. The reversal of 6688714 is 4178866.

It can be written as a sum of positive squares in 2 ways, for example, as 6589489 + 99225 = 2567^2 + 315^2 .

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6457 + ... + 7420.

Almost surely, 2^6688714 is an apocalyptic number.

6688714 is a deficient number, since it is larger than the sum of its proper divisors (3386714).

6688714 is a wasteful number, since it uses less digits than its factorization.

6688714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14120.

The product of its digits is 64512, while the sum is 40.

The square root of 6688714 is about 2586.2548211652. The cubic root of 6688714 is about 188.4144508339.

The spelling of 6688714 in words is "six million, six hundred eighty-eight thousand, seven hundred fourteen".