6756881 has 2 divisors, whose sum is σ = 6756882. Its totient is φ = 6756880.

The previous prime is 6756863. The next prime is 6756889. The reversal of 6756881 is 1886576.

6756881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4326400 + 2430481 = 2080^2 + 1559^2 .

It is a cyclic number.

It is not a de Polignac number, because 6756881 - 2⁶ = 6756817 is a prime.

It is a super-2 number, since 2×6756881² = 91310881696322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6756889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3378440 + 3378441.

It is an arithmetic number, because the mean of its divisors is an integer number (3378441).

Almost surely, 2^6756881 is an apocalyptic number.

It is an amenable number.

6756881 is a deficient number, since it is larger than the sum of its proper divisors (1).

6756881 is an equidigital number, since it uses as much as digits as its factorization.

6756881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 41.

The square root of 6756881 is about 2599.4001231053. The cubic root of 6756881 is about 189.0523543175.

The spelling of 6756881 in words is "six million, seven hundred fifty-six thousand, eight hundred eighty-one".