6881291 has 2 divisors, whose sum is σ = 6881292. Its totient is φ = 6881290.

The previous prime is 6881269. The next prime is 6881321. The reversal of 6881291 is 1921886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6881291 - 2¹⁰ = 6880267 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6881261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3440645 + 3440646.

It is an arithmetic number, because the mean of its divisors is an integer number (3440646).

Almost surely, 2^6881291 is an apocalyptic number.

6881291 is a deficient number, since it is larger than the sum of its proper divisors (1).

6881291 is an equidigital number, since it uses as much as digits as its factorization.

6881291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 35.

The square root of 6881291 is about 2623.2214927451. The cubic root of 6881291 is about 190.2056038387.

The spelling of 6881291 in words is "six million, eight hundred eighty-one thousand, two hundred ninety-one".