6726681 has 12 divisors (see below), whose sum is σ = 10463908. Its totient is φ = 4139424.

The previous prime is 6726667. The next prime is 6726689. The reversal of 6726681 is 1866276.

It is a happy number.

6726681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1798281 + 4928400 = 1341^2 + 2220^2 .

It is not a de Polignac number, because 6726681 - 2¹⁰ = 6725657 is a prime.

It is a super-2 number, since 2×6726681² = 90496474551522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6726689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28630 + ... + 28863.

Almost surely, 2^6726681 is an apocalyptic number.

It is an amenable number.

6726681 is a deficient number, since it is larger than the sum of its proper divisors (3737227).

6726681 is a wasteful number, since it uses less digits than its factorization.

6726681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57512 (or 57509 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 6726681 is about 2593.5845850868. The cubic root of 6726681 is about 188.7702760260.

The spelling of 6726681 in words is "six million, seven hundred twenty-six thousand, six hundred eighty-one".