3666868 has 12 divisors (see below), whose sum is σ = 6566560. Its totient is φ = 1790712.

The previous prime is 3666853. The next prime is 3666877. The reversal of 3666868 is 8686663.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

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, 10488 + ... + 10831.

Almost surely, 2^3666868 is an apocalyptic number.

It is an amenable number.

3666868 is a deficient number, since it is larger than the sum of its proper divisors (2899692).

3666868 is a wasteful number, since it uses less digits than its factorization.

3666868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21366 (or 21364 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 3666868 is about 1914.9067862431. The cubic root of 3666868 is about 154.2049892880.

The spelling of 3666868 in words is "three million, six hundred sixty-six thousand, eight hundred sixty-eight".