28895472 has 60 divisors (see below), whose sum is σ = 83488704. Its totient is φ = 9319680.

The previous prime is 28895453. The next prime is 28895473. The reversal of 28895472 is 27459882.

28895472 is a `hidden beast` number, since 28 + 89 + 547 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28895473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1228 + ... + 7700.

Almost surely, 2^28895472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28895472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41744352).

28895472 is an abundant number, since it is smaller than the sum of its proper divisors (54593232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28895472 is a wasteful number, since it uses less digits than its factorization.

28895472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6518 (or 6509 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 28895472 is about 5375.4508648112. The cubic root of 28895472 is about 306.8621081411.

The spelling of 28895472 in words is "twenty-eight million, eight hundred ninety-five thousand, four hundred seventy-two".