3861916 has 12 divisors (see below), whose sum is σ = 6915832. Its totient is φ = 1885968.

The previous prime is 3861911. The next prime is 3861929. The reversal of 3861916 is 6191683.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11055 + ... + 11398.

Almost surely, 2^3861916 is an apocalyptic number.

It is an amenable number.

3861916 is a deficient number, since it is larger than the sum of its proper divisors (3053916).

3861916 is a wasteful number, since it uses less digits than its factorization.

3861916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22500 (or 22498 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 3861916 is about 1965.1758191063. The cubic root of 3861916 is about 156.8920512357.

The spelling of 3861916 in words is "three million, eight hundred sixty-one thousand, nine hundred sixteen".