6871212 has 72 divisors (see below), whose sum is σ = 18450432. Its totient is φ = 2152800.

The previous prime is 6871211. The next prime is 6871253. The reversal of 6871212 is 2121786.

It is not an unprimeable number, because it can be changed into a prime (6871211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52387 + ... + 52517.

It is an arithmetic number, because the mean of its divisors is an integer number (256256).

Almost surely, 2^6871212 is an apocalyptic number.

6871212 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6871212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9225216).

6871212 is an abundant number, since it is smaller than the sum of its proper divisors (11579220).

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

6871212 is a wasteful number, since it uses less digits than its factorization.

6871212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 214 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 6871212 is about 2621.2996776408. The cubic root of 6871212 is about 190.1126939945.

Adding to 6871212 its reverse (2121786), we get a palindrome (8992998).

The spelling of 6871212 in words is "six million, eight hundred seventy-one thousand, two hundred twelve".