6777871 has 4 divisors (see below), whose sum is σ = 6996544. Its totient is φ = 6559200.

The previous prime is 6777839. The next prime is 6777923. The reversal of 6777871 is 1787776.

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

It is a cyclic number.

It is not a de Polignac number, because 6777871 - 2⁵ = 6777839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6777811) 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, 109290 + ... + 109351.

It is an arithmetic number, because the mean of its divisors is an integer number (1749136).

Almost surely, 2^6777871 is an apocalyptic number.

6777871 is a deficient number, since it is larger than the sum of its proper divisors (218673).

6777871 is a wasteful number, since it uses less digits than its factorization.

6777871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218672.

The product of its digits is 115248, while the sum is 43.

The square root of 6777871 is about 2603.4344623977. The cubic root of 6777871 is about 189.2479133317.

The spelling of 6777871 in words is "six million, seven hundred seventy-seven thousand, eight hundred seventy-one".