6872681 has 8 divisors (see below), whose sum is σ = 7144200. Its totient is φ = 6603520.

The previous prime is 6872651. The next prime is 6872683. The reversal of 6872681 is 1862786.

It can be written as a sum of positive squares in 4 ways, for example, as 8281 + 6864400 = 91^2 + 2620^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6872681 - 2⁶ = 6872617 is a prime.

It is a super-2 number, since 2×6872681² = 94467488255522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6872683) 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 7 ways as a sum of consecutive naturals, for example, 7361 + ... + 8241.

It is an arithmetic number, because the mean of its divisors is an integer number (893025).

Almost surely, 2^6872681 is an apocalyptic number.

It is an amenable number.

6872681 is a deficient number, since it is larger than the sum of its proper divisors (271519).

6872681 is a wasteful number, since it uses less digits than its factorization.

6872681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179.

The product of its digits is 32256, while the sum is 38.

The square root of 6872681 is about 2621.5798671793. The cubic root of 6872681 is about 190.1262411265.

The spelling of 6872681 in words is "six million, eight hundred seventy-two thousand, six hundred eighty-one".