3684644 has 12 divisors (see below), whose sum is σ = 6554268. Its totient is φ = 1812000.

The previous prime is 3684643. The next prime is 3684647. The reversal of 3684644 is 4464863.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 262144 + 3422500 = 512^2 + 1850^2 .

It is not an unprimeable number, because it can be changed into a prime (3684641) 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, 7307 + ... + 7794.

It is an arithmetic number, because the mean of its divisors is an integer number (546189).

Almost surely, 2^3684644 is an apocalyptic number.

It is an amenable number.

3684644 is a deficient number, since it is larger than the sum of its proper divisors (2869624).

3684644 is a wasteful number, since it uses less digits than its factorization.

3684644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15166 (or 15164 counting only the distinct ones).

The product of its digits is 55296, while the sum is 35.

The square root of 3684644 is about 1919.5426538632. The cubic root of 3684644 is about 154.4537692940.

The spelling of 3684644 in words is "three million, six hundred eighty-four thousand, six hundred forty-four".