3866156 has 12 divisors (see below), whose sum is σ = 7732368. Its totient is φ = 1656912.

The previous prime is 3866147. The next prime is 3866171. The reversal of 3866156 is 6516683.

3866156 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69011 + ... + 69066.

It is an arithmetic number, because the mean of its divisors is an integer number (644364).

Almost surely, 2^3866156 is an apocalyptic number.

It is an amenable number.

3866156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3866156 is a wasteful number, since it uses less digits than its factorization.

3866156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138088 (or 138086 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 3866156 is about 1966.2543070519. The cubic root of 3866156 is about 156.9494475295.

The spelling of 3866156 in words is "three million, eight hundred sixty-six thousand, one hundred fifty-six".