6774178 has 4 divisors (see below), whose sum is σ = 10161270. Its totient is φ = 3387088.

The previous prime is 6774149. The next prime is 6774179. The reversal of 6774178 is 8714776.

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

It can be written as a sum of positive squares in only one way, i.e., 6568969 + 205209 = 2563^2 + 453^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 6774178.

It is not an unprimeable number, because it can be changed into a prime (6774179) 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 as a sum of consecutive naturals, namely, 1693543 + ... + 1693546.

Almost surely, 2^6774178 is an apocalyptic number.

6774178 is a deficient number, since it is larger than the sum of its proper divisors (3387092).

6774178 is a wasteful number, since it uses less digits than its factorization.

6774178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387091.

The product of its digits is 65856, while the sum is 40.

The square root of 6774178 is about 2602.7251103411. The cubic root of 6774178 is about 189.2135357956.

The spelling of 6774178 in words is "six million, seven hundred seventy-four thousand, one hundred seventy-eight".