28647448 has 16 divisors (see below), whose sum is σ = 56873880. Its totient is φ = 13481088.

The previous prime is 28647427. The next prime is 28647467. The reversal of 28647448 is 84474682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105186 + ... + 105457.

Almost surely, 2^28647448 is an apocalyptic number.

It is an amenable number.

28647448 is a deficient number, since it is larger than the sum of its proper divisors (28226432).

28647448 is a wasteful number, since it uses less digits than its factorization.

28647448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210666 (or 210662 counting only the distinct ones).

The product of its digits is 344064, while the sum is 43.

The square root of 28647448 is about 5352.3310809403. The cubic root of 28647448 is about 305.9816014113.

The spelling of 28647448 in words is "twenty-eight million, six hundred forty-seven thousand, four hundred forty-eight".