3861612 has 36 divisors (see below), whose sum is σ = 9913176. Its totient is φ = 1267200.

The previous prime is 3861607. The next prime is 3861659. The reversal of 3861612 is 2161683.

3861612 is a `hidden beast` number, since 38 + 616 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1612 + ... + 3212.

It is an arithmetic number, because the mean of its divisors is an integer number (275366).

Almost surely, 2^3861612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3861612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4956588).

3861612 is an abundant number, since it is smaller than the sum of its proper divisors (6051564).

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

3861612 is a wasteful number, since it uses less digits than its factorization.

3861612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678 (or 1673 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 3861612 is about 1965.0984708151. The cubic root of 3861612 is about 156.8879344160.

The spelling of 3861612 in words is "three million, eight hundred sixty-one thousand, six hundred twelve".