6779871 has 24 divisors (see below), whose sum is σ = 11681280. Its totient is φ = 3704976.

The previous prime is 6779863. The next prime is 6779911. The reversal of 6779871 is 1789776.

It is a happy number.

It is not a de Polignac number, because 6779871 - 2³ = 6779863 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6779671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 891 + ... + 3788.

It is an arithmetic number, because the mean of its divisors is an integer number (486720).

Almost surely, 2^6779871 is an apocalyptic number.

6779871 is a deficient number, since it is larger than the sum of its proper divisors (4901409).

6779871 is a wasteful number, since it uses less digits than its factorization.

6779871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715 (or 4712 counting only the distinct ones).

The product of its digits is 148176, while the sum is 45.

The square root of 6779871 is about 2603.8185420647. The cubic root of 6779871 is about 189.2665257939.

The spelling of 6779871 in words is "six million, seven hundred seventy-nine thousand, eight hundred seventy-one".