3806644 has 12 divisors (see below), whose sum is σ = 6771268. Its totient is φ = 1872000.

The previous prime is 3806641. The next prime is 3806653. The reversal of 3806644 is 4466083.

3806644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1790244 + 2016400 = 1338^2 + 1420^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3806641) 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 3 ways as a sum of consecutive naturals, for example, 7557 + ... + 8044.

Almost surely, 2^3806644 is an apocalyptic number.

It is an amenable number.

3806644 is a deficient number, since it is larger than the sum of its proper divisors (2964624).

3806644 is a wasteful number, since it uses less digits than its factorization.

3806644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15666 (or 15664 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 3806644 is about 1951.0622747621. The cubic root of 3806644 is about 156.1399686140.

The spelling of 3806644 in words is "three million, eight hundred six thousand, six hundred forty-four".