6671871 has 12 divisors (see below), whose sum is σ = 10204272. Its totient is φ = 4186176.

The previous prime is 6671839. The next prime is 6671879. The reversal of 6671871 is 1781766.

It is a happy number.

6671871 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6671871 - 2⁵ = 6671839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6671879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21651 + ... + 21956.

It is an arithmetic number, because the mean of its divisors is an integer number (850356).

Almost surely, 2^6671871 is an apocalyptic number.

6671871 is a deficient number, since it is larger than the sum of its proper divisors (3532401).

6671871 is a wasteful number, since it uses less digits than its factorization.

6671871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43630 (or 43627 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 6671871 is about 2582.9965156771. The cubic root of 6671871 is about 188.2561676894.

The spelling of 6671871 in words is "six million, six hundred seventy-one thousand, eight hundred seventy-one".