6678851 has 2 divisors, whose sum is σ = 6678852. Its totient is φ = 6678850.

The previous prime is 6678839. The next prime is 6678853. The reversal of 6678851 is 1588766.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6678851 is a prime.

It is a super-3 number, since 3×6678851³ (a number of 21 digits) contains 333 as substring.

Together with 6678853, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6678799 and 6678808.

It is not a weakly prime, because it can be changed into another prime (6678853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3339425 + 3339426.

It is an arithmetic number, because the mean of its divisors is an integer number (3339426).

Almost surely, 2^6678851 is an apocalyptic number.

6678851 is a deficient number, since it is larger than the sum of its proper divisors (1).

6678851 is an equidigital number, since it uses as much as digits as its factorization.

6678851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 41.

The square root of 6678851 is about 2584.3473063812. The cubic root of 6678851 is about 188.3217949614.

The spelling of 6678851 in words is "six million, six hundred seventy-eight thousand, eight hundred fifty-one".