3879866 has 16 divisors (see below), whose sum is σ = 5987520. Its totient is φ = 1884960.

The previous prime is 3879853. The next prime is 3879913. The reversal of 3879866 is 6689783.

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 3879866.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12485 + ... + 12791.

It is an arithmetic number, because the mean of its divisors is an integer number (374220).

Almost surely, 2^3879866 is an apocalyptic number.

3879866 is a deficient number, since it is larger than the sum of its proper divisors (2107654).

3879866 is a wasteful number, since it uses less digits than its factorization.

3879866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469.

The product of its digits is 435456, while the sum is 47.

The square root of 3879866 is about 1969.7375459690. The cubic root of 3879866 is about 157.1347511757.

The spelling of 3879866 in words is "three million, eight hundred seventy-nine thousand, eight hundred sixty-six".