6677767 has 2 divisors, whose sum is σ = 6677768. Its totient is φ = 6677766.

The previous prime is 6677761. The next prime is 6677777. The reversal of 6677767 is 7677766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6677767 - 2¹¹ = 6675719 is a prime.

It is a super-3 number, since 3×6677767³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6677761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3338883 + 3338884.

It is an arithmetic number, because the mean of its divisors is an integer number (3338884).

Almost surely, 2^6677767 is an apocalyptic number.

6677767 is a deficient number, since it is larger than the sum of its proper divisors (1).

6677767 is an equidigital number, since it uses as much as digits as its factorization.

6677767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518616, while the sum is 46.

The square root of 6677767 is about 2584.1375737371. The cubic root of 6677767 is about 188.3116059898.

Subtracting 6677767 from its reverse (7677766), we obtain a palindrome (999999).

The spelling of 6677767 in words is "six million, six hundred seventy-seven thousand, seven hundred sixty-seven".