5664728 has 8 divisors (see below), whose sum is σ = 10621380. Its totient is φ = 2832360.

The previous prime is 5664719. The next prime is 5664731. The reversal of 5664728 is 8274665.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 5664691 and 5664700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354038 + ... + 354053.

Almost surely, 2^5664728 is an apocalyptic number.

It is an amenable number.

5664728 is a deficient number, since it is larger than the sum of its proper divisors (4956652).

5664728 is a wasteful number, since it uses less digits than its factorization.

5664728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708097 (or 708093 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 5664728 is about 2380.0689065655. The cubic root of 5664728 is about 178.2623745021.

The spelling of 5664728 in words is "five million, six hundred sixty-four thousand, seven hundred twenty-eight".