6871812 has 12 divisors (see below), whose sum is σ = 16034256. Its totient is φ = 2290600.

The previous prime is 6871807. The next prime is 6871829. The reversal of 6871812 is 2181786.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286314 + ... + 286337.

It is an arithmetic number, because the mean of its divisors is an integer number (1336188).

Almost surely, 2^6871812 is an apocalyptic number.

It is an amenable number.

6871812 is an abundant number, since it is smaller than the sum of its proper divisors (9162444).

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

6871812 is a wasteful number, since it uses less digits than its factorization.

6871812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572658 (or 572656 counting only the distinct ones).

The product of its digits is 5376, while the sum is 33.

The square root of 6871812 is about 2621.4141221867. The cubic root of 6871812 is about 190.1182274335.

The spelling of 6871812 in words is "six million, eight hundred seventy-one thousand, eight hundred twelve".