28647148 has 6 divisors (see below), whose sum is σ = 50132516. Its totient is φ = 14323572.

The previous prime is 28647133. The next prime is 28647161. The reversal of 28647148 is 84174682.

It is a self number, because there is not a number n which added to its sum of digits gives 28647148.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3580890 + ... + 3580897.

Almost surely, 2^28647148 is an apocalyptic number.

It is an amenable number.

28647148 is a deficient number, since it is larger than the sum of its proper divisors (21485368).

28647148 is a wasteful number, since it uses less digits than its factorization.

28647148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7161791 (or 7161789 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 28647148 is about 5352.3030556948. The cubic root of 28647148 is about 305.9805333139.

The spelling of 28647148 in words is "twenty-eight million, six hundred forty-seven thousand, one hundred forty-eight".