6683947 has 2 divisors, whose sum is σ = 6683948. Its totient is φ = 6683946.

The previous prime is 6683927. The next prime is 6683951. The reversal of 6683947 is 7493866.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6683947 is a prime.

6683947 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6683927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3341973 + 3341974.

It is an arithmetic number, because the mean of its divisors is an integer number (3341974).

Almost surely, 2^6683947 is an apocalyptic number.

6683947 is a deficient number, since it is larger than the sum of its proper divisors (1).

6683947 is an equidigital number, since it uses as much as digits as its factorization.

6683947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 43.

The square root of 6683947 is about 2585.3330539797. Note that the first 3 decimals coincide. The cubic root of 6683947 is about 188.3696796394.

The spelling of 6683947 in words is "six million, six hundred eighty-three thousand, nine hundred forty-seven".