3861912 has 32 divisors (see below), whose sum is σ = 9918000. Its totient is φ = 1252224.

The previous prime is 3861911. The next prime is 3861929. The reversal of 3861912 is 2191683.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3861912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861911) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1287 + ... + 3062.

Almost surely, 2^3861912 is an apocalyptic number.

It is an amenable number.

3861912 is an abundant number, since it is smaller than the sum of its proper divisors (6056088).

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

3861912 is a wasteful number, since it uses less digits than its factorization.

3861912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395 (or 4391 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 3861912 is about 1965.1748013854. The cubic root of 3861912 is about 156.8919970684.

The spelling of 3861912 in words is "three million, eight hundred sixty-one thousand, nine hundred twelve".