3868812 has 18 divisors (see below), whose sum is σ = 9779588. Its totient is φ = 1289592.

The previous prime is 3868811. The next prime is 3868817. The reversal of 3868812 is 2188683.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 107467 = 3868812 / (3 + 8 + 6 + 8 + 8 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (3868811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53698 + ... + 53769.

Almost surely, 2^3868812 is an apocalyptic number.

It is an amenable number.

3868812 is an abundant number, since it is smaller than the sum of its proper divisors (5910776).

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

3868812 is a wasteful number, since it uses less digits than its factorization.

3868812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107477 (or 107472 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 3868812 is about 1966.9295869451. The cubic root of 3868812 is about 156.9853800605.

The spelling of 3868812 in words is "three million, eight hundred sixty-eight thousand, eight hundred twelve".