6678247 has 2 divisors, whose sum is σ = 6678248. Its totient is φ = 6678246.

The previous prime is 6678233. The next prime is 6678271. The reversal of 6678247 is 7428766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6678247 - 2¹¹ = 6676199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6678227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3339123 + 3339124.

It is an arithmetic number, because the mean of its divisors is an integer number (3339124).

Almost surely, 2^6678247 is an apocalyptic number.

6678247 is a deficient number, since it is larger than the sum of its proper divisors (1).

6678247 is an equidigital number, since it uses as much as digits as its factorization.

6678247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 6678247 is about 2584.2304463805. The cubic root of 6678247 is about 188.3161178476.

The spelling of 6678247 in words is "six million, six hundred seventy-eight thousand, two hundred forty-seven".