6776887 has 4 divisors (see below), whose sum is σ = 7298200. Its totient is φ = 6255576.

The previous prime is 6776873. The next prime is 6776893. The reversal of 6776887 is 7886776.

6776887 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6776887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6776887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6776087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260637 + ... + 260662.

It is an arithmetic number, because the mean of its divisors is an integer number (1824550).

Almost surely, 2^6776887 is an apocalyptic number.

6776887 is a deficient number, since it is larger than the sum of its proper divisors (521313).

6776887 is a wasteful number, since it uses less digits than its factorization.

6776887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521312.

The product of its digits is 790272, while the sum is 49.

The square root of 6776887 is about 2603.2454744031. The cubic root of 6776887 is about 189.2387546564.

The spelling of 6776887 in words is "six million, seven hundred seventy-six thousand, eight hundred eighty-seven".