6678767 has 2 divisors, whose sum is σ = 6678768. Its totient is φ = 6678766.

The previous prime is 6678751. The next prime is 6678779. The reversal of 6678767 is 7678766.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6678767 - 2⁴ = 6678751 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6678797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3339383 + 3339384.

It is an arithmetic number, because the mean of its divisors is an integer number (3339384).

Almost surely, 2^6678767 is an apocalyptic number.

6678767 is a deficient number, since it is larger than the sum of its proper divisors (1).

6678767 is an equidigital number, since it uses as much as digits as its factorization.

6678767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 47.

The square root of 6678767 is about 2584.3310546445. The cubic root of 6678767 is about 188.3210054495.

Subtracting 6678767 from its reverse (7678766), we obtain a palindrome (999999).

The spelling of 6678767 in words is "six million, six hundred seventy-eight thousand, seven hundred sixty-seven".