3687866 has 32 divisors (see below), whose sum is σ = 7112448. Its totient is φ = 1393920.

The previous prime is 3687857. The next prime is 3687869. The reversal of 3687866 is 6687863.

3687866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×3687866³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3687869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3746 + ... + 4626.

It is an arithmetic number, because the mean of its divisors is an integer number (222264).

Almost surely, 2^3687866 is an apocalyptic number.

3687866 is a deficient number, since it is larger than the sum of its proper divisors (3424582).

3687866 is a wasteful number, since it uses less digits than its factorization.

3687866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926.

The product of its digits is 290304, while the sum is 44.

The square root of 3687866 is about 1920.3817328854. The cubic root of 3687866 is about 154.4987763612.

The spelling of 3687866 in words is "three million, six hundred eighty-seven thousand, eight hundred sixty-six".