6811967 has 2 divisors, whose sum is σ = 6811968. Its totient is φ = 6811966.

The previous prime is 6811949. The next prime is 6811993. The reversal of 6811967 is 7691186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6811967 - 2¹⁰ = 6810943 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6811967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6811997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3405983 + 3405984.

It is an arithmetic number, because the mean of its divisors is an integer number (3405984).

Almost surely, 2^6811967 is an apocalyptic number.

6811967 is a deficient number, since it is larger than the sum of its proper divisors (1).

6811967 is an equidigital number, since it uses as much as digits as its factorization.

6811967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 6811967 is about 2609.9745209484. The cubic root of 6811967 is about 189.5647191589.

It can be divided in two parts, 68119 and 67, that added together give a palindrome (68186).

The spelling of 6811967 in words is "six million, eight hundred eleven thousand, nine hundred sixty-seven".