6747855 has 16 divisors (see below), whose sum is σ = 11266560. Its totient is φ = 3442208.

The previous prime is 6747847. The next prime is 6747857. The reversal of 6747855 is 5587476.

6747855 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 6747855 - 2³ = 6747847 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

6747855 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6747857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9435 + ... + 10124.

It is an arithmetic number, because the mean of its divisors is an integer number (704160).

Almost surely, 2^6747855 is an apocalyptic number.

6747855 is a deficient number, since it is larger than the sum of its proper divisors (4518705).

6747855 is a wasteful number, since it uses less digits than its factorization.

6747855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19590.

The product of its digits is 235200, while the sum is 42.

The square root of 6747855 is about 2597.6633731105. The cubic root of 6747855 is about 188.9681366178.

The spelling of 6747855 in words is "six million, seven hundred forty-seven thousand, eight hundred fifty-five".