6680287 has 2 divisors, whose sum is σ = 6680288. Its totient is φ = 6680286.

The previous prime is 6680273. The next prime is 6680321. The reversal of 6680287 is 7820866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6680287 - 2¹⁵ = 6647519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6680227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3340143 + 3340144.

It is an arithmetic number, because the mean of its divisors is an integer number (3340144).

Almost surely, 2^6680287 is an apocalyptic number.

6680287 is a deficient number, since it is larger than the sum of its proper divisors (1).

6680287 is an equidigital number, since it uses as much as digits as its factorization.

6680287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 6680287 is about 2584.6251178846. The cubic root of 6680287 is about 188.3352908316.

The spelling of 6680287 in words is "six million, six hundred eighty thousand, two hundred eighty-seven".