6881443 has 2 divisors, whose sum is σ = 6881444. Its totient is φ = 6881442.

The previous prime is 6881437. The next prime is 6881461. The reversal of 6881443 is 3441886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6881443 - 2⁹ = 6880931 is a prime.

6881443 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6881399 and 6881408.

It is not a weakly prime, because it can be changed into another prime (6881843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3440721 + 3440722.

It is an arithmetic number, because the mean of its divisors is an integer number (3440722).

Almost surely, 2^6881443 is an apocalyptic number.

6881443 is a deficient number, since it is larger than the sum of its proper divisors (1).

6881443 is an equidigital number, since it uses as much as digits as its factorization.

6881443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 34.

The square root of 6881443 is about 2623.2504645954. The cubic root of 6881443 is about 190.2070043046.

The spelling of 6881443 in words is "six million, eight hundred eighty-one thousand, four hundred forty-three".