6771147 has 4 divisors (see below), whose sum is σ = 9028200. Its totient is φ = 4514096.

The previous prime is 6771143. The next prime is 6771161. The reversal of 6771147 is 7411776.

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

It is a cyclic number.

It is not a de Polignac number, because 6771147 - 2² = 6771143 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (6771143) 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 3 ways as a sum of consecutive naturals, for example, 1128522 + ... + 1128527.

It is an arithmetic number, because the mean of its divisors is an integer number (2257050).

Almost surely, 2^6771147 is an apocalyptic number.

6771147 is a deficient number, since it is larger than the sum of its proper divisors (2257053).

6771147 is a wasteful number, since it uses less digits than its factorization.

6771147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257052.

The product of its digits is 8232, while the sum is 33.

The square root of 6771147 is about 2602.1427708717. The cubic root of 6771147 is about 189.1853113732.

The spelling of 6771147 in words is "six million, seven hundred seventy-one thousand, one hundred forty-seven".