6947 has 2 divisors, whose sum is σ = 6948. Its totient is φ = 6946.
The previous prime is 6917. The next prime is 6949. The reversal of 6947 is 7496.
6947 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.
6947 is a truncatable prime.
It is a cyclic number.
It is not a de Polignac number, because 6947 - 26 = 6883 is a prime.
Together with 6949, it forms a pair of twin primes.
It is a Chen prime.
It is an alternating number because its digits alternate between even and odd.
It is not a weakly prime, because it can be changed into another prime (6949) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a good prime.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3473 + 3474.
It is an arithmetic number, because the mean of its divisors is an integer number (3474).
26947 is an apocalyptic number.
6947 is a deficient number, since it is larger than the sum of its proper divisors (1).
6947 is an equidigital number, since it uses as much as digits as its factorization.
6947 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1512, while the sum is 26.
The square root of 6947 is about 83.3486652563. The cubic root of 6947 is about 19.0809107269.
The spelling of 6947 in words is "six thousand, nine hundred forty-seven".
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