6771879 has 6 divisors (see below), whose sum is σ = 9781616. Its totient is φ = 4514580.

The previous prime is 6771871. The next prime is 6771883. The reversal of 6771879 is 9781776.

It is a happy number.

It is not a de Polignac number, because 6771879 - 2³ = 6771871 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 (6771871) 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 5 ways as a sum of consecutive naturals, for example, 376207 + ... + 376224.

Almost surely, 2^6771879 is an apocalyptic number.

6771879 is a deficient number, since it is larger than the sum of its proper divisors (3009737).

6771879 is a wasteful number, since it uses less digits than its factorization.

6771879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752437 (or 752434 counting only the distinct ones).

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

The square root of 6771879 is about 2602.2834203830. The cubic root of 6771879 is about 189.1921284682.

It can be divided in two parts, 677 and 1879, that added together give a triangular number (2556 = T₇₁).

The spelling of 6771879 in words is "six million, seven hundred seventy-one thousand, eight hundred seventy-nine".