3987166 has 8 divisors (see below), whose sum is σ = 5993064. Its totient is φ = 1989480.

The previous prime is 3987149. The next prime is 3987167. The reversal of 3987166 is 6617893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987167) 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, 645 + ... + 2896.

It is an arithmetic number, because the mean of its divisors is an integer number (749133).

Almost surely, 2^3987166 is an apocalyptic number.

3987166 is a deficient number, since it is larger than the sum of its proper divisors (2005898).

3987166 is a wasteful number, since it uses less digits than its factorization.

3987166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4106.

The product of its digits is 54432, while the sum is 40.

The square root of 3987166 is about 1996.7889222449. The cubic root of 3987166 is about 158.5701507582.

The spelling of 3987166 in words is "three million, nine hundred eighty-seven thousand, one hundred sixty-six".