6871312 has 40 divisors (see below), whose sum is σ = 16020800. Its totient is φ = 2788992.

The previous prime is 6871301. The next prime is 6871327. The reversal of 6871312 is 2131786.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514 + ... + 3742.

It is an arithmetic number, because the mean of its divisors is an integer number (400520).

Almost surely, 2^6871312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6871312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8010400).

6871312 is an abundant number, since it is smaller than the sum of its proper divisors (9149488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6871312 is a wasteful number, since it uses less digits than its factorization.

6871312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263 (or 3257 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 6871312 is about 2621.3187520788. The cubic root of 6871312 is about 190.1136162567.

The spelling of 6871312 in words is "six million, eight hundred seventy-one thousand, three hundred twelve".