6811667 has 2 divisors, whose sum is σ = 6811668. Its totient is φ = 6811666.

The previous prime is 6811639. The next prime is 6811681. The reversal of 6811667 is 7661186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6811667 - 2⁶ = 6811603 is a prime.

It is not a weakly prime, because it can be changed into another prime (6811627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3405833 + 3405834.

It is an arithmetic number, because the mean of its divisors is an integer number (3405834).

Almost surely, 2^6811667 is an apocalyptic number.

6811667 is a deficient number, since it is larger than the sum of its proper divisors (1).

6811667 is an equidigital number, since it uses as much as digits as its factorization.

6811667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 6811667 is about 2609.9170484902. The cubic root of 6811667 is about 189.5619362989.

The spelling of 6811667 in words is "six million, eight hundred eleven thousand, six hundred sixty-seven".