3666844 has 12 divisors (see below), whose sum is σ = 6696144. Its totient is φ = 1753664.

The previous prime is 3666841. The next prime is 3666853. The reversal of 3666844 is 4486663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666841) 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, 19837 + ... + 20020.

It is an arithmetic number, because the mean of its divisors is an integer number (558012).

Almost surely, 2^3666844 is an apocalyptic number.

It is an amenable number.

3666844 is a deficient number, since it is larger than the sum of its proper divisors (3029300).

3666844 is a wasteful number, since it uses less digits than its factorization.

3666844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39884 (or 39882 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 3666844 is about 1914.9005196093. The cubic root of 3666844 is about 154.2046528585.

The spelling of 3666844 in words is "three million, six hundred sixty-six thousand, eight hundred forty-four".