6881812 has 24 divisors (see below), whose sum is σ = 13898304. Its totient is φ = 2920512.

The previous prime is 6881803. The next prime is 6881839. The reversal of 6881812 is 2181886.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1848 + ... + 4144.

It is an arithmetic number, because the mean of its divisors is an integer number (579096).

Almost surely, 2^6881812 is an apocalyptic number.

It is an amenable number.

6881812 is an abundant number, since it is smaller than the sum of its proper divisors (7016492).

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

6881812 is a wasteful number, since it uses less digits than its factorization.

6881812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415 (or 2413 counting only the distinct ones).

The product of its digits is 6144, while the sum is 34.

The square root of 6881812 is about 2623.3207962428. The cubic root of 6881812 is about 190.2104040339.

It can be divided in two parts, 688 and 1812, that added together give a square (2500 = 50²).

The spelling of 6881812 in words is "six million, eight hundred eighty-one thousand, eight hundred twelve".