6771855 has 16 divisors (see below), whose sum is σ = 11088000. Its totient is φ = 3527328.

The previous prime is 6771803. The next prime is 6771871. The reversal of 6771855 is 5581776.

It is not a de Polignac number, because 6771855 - 2¹³ = 6763663 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4605 + ... + 5894.

It is an arithmetic number, because the mean of its divisors is an integer number (693000).

Almost surely, 2^6771855 is an apocalyptic number.

6771855 is a deficient number, since it is larger than the sum of its proper divisors (4316145).

6771855 is a wasteful number, since it uses less digits than its factorization.

6771855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10550.

The product of its digits is 58800, while the sum is 39.

The square root of 6771855 is about 2602.2788090441. The cubic root of 6771855 is about 189.1919049647.

It can be divided in two parts, 6771 and 855, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 6771855 in words is "six million, seven hundred seventy-one thousand, eight hundred fifty-five".