6681847 has 2 divisors, whose sum is σ = 6681848. Its totient is φ = 6681846.

The previous prime is 6681839. The next prime is 6681877. The reversal of 6681847 is 7481866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6681847 - 2³ = 6681839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6681817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3340923 + 3340924.

It is an arithmetic number, because the mean of its divisors is an integer number (3340924).

Almost surely, 2^6681847 is an apocalyptic number.

6681847 is a deficient number, since it is larger than the sum of its proper divisors (1).

6681847 is an equidigital number, since it uses as much as digits as its factorization.

6681847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 40.

The square root of 6681847 is about 2584.9268848461. The cubic root of 6681847 is about 188.3499498918.

The spelling of 6681847 in words is "six million, six hundred eighty-one thousand, eight hundred forty-seven".