28607824 has 40 divisors (see below), whose sum is σ = 64232000. Its totient is φ = 12089088.

The previous prime is 28607809. The next prime is 28607867. The reversal of 28607824 is 42870682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6427 + ... + 9925.

It is an arithmetic number, because the mean of its divisors is an integer number (1605800).

Almost surely, 2^28607824 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 28607824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32116000).

28607824 is an abundant number, since it is smaller than the sum of its proper divisors (35624176).

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

28607824 is a wasteful number, since it uses less digits than its factorization.

28607824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587 (or 3581 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 28607824 is about 5348.6282353516. The cubic root of 28607824 is about 305.8404624964.

The spelling of 28607824 in words is "twenty-eight million, six hundred seven thousand, eight hundred twenty-four".