8861812 has 12 divisors (see below), whose sum is σ = 15801156. Its totient is φ = 4347200.

The previous prime is 8861807. The next prime is 8861813. The reversal of 8861812 is 2181688.

It can be written as a sum of positive squares in 2 ways, for example, as 2328676 + 6533136 = 1526^2 + 2556^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8861813) 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 3 ways as a sum of consecutive naturals, for example, 20689 + ... + 21112.

It is an arithmetic number, because the mean of its divisors is an integer number (1316763).

Almost surely, 2^8861812 is an apocalyptic number.

It is an amenable number.

8861812 is a deficient number, since it is larger than the sum of its proper divisors (6939344).

8861812 is a wasteful number, since it uses less digits than its factorization.

8861812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41858 (or 41856 counting only the distinct ones).

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

The square root of 8861812 is about 2976.8795743194. The cubic root of 8861812 is about 206.9382843237.

The spelling of 8861812 in words is "eight million, eight hundred sixty-one thousand, eight hundred twelve".