5644904 has 8 divisors (see below), whose sum is σ = 10584210. Its totient is φ = 2822448.

The previous prime is 5644889. The next prime is 5644907. The reversal of 5644904 is 4094465.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3960100 + 1684804 = 1990^2 + 1298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5644907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352799 + ... + 352814.

Almost surely, 2^5644904 is an apocalyptic number.

It is an amenable number.

5644904 is a deficient number, since it is larger than the sum of its proper divisors (4939306).

5644904 is a wasteful number, since it uses less digits than its factorization.

5644904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705619 (or 705615 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 5644904 is about 2375.9006713245. The cubic root of 5644904 is about 178.0541854141.

The spelling of 5644904 in words is "five million, six hundred forty-four thousand, nine hundred four".