28854784 has 80 divisors (see below), whose sum is σ = 67370688. Its totient is φ = 12091392.

The previous prime is 28854773. The next prime is 28854799. The reversal of 28854784 is 48745882.

28854784 = T₇₉₂ + T₇₉₃ + ... + T₈₇₄.

It is a happy 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, 297424 + ... + 297520.

Almost surely, 2^28854784 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 28854784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33685344).

28854784 is an abundant number, since it is smaller than the sum of its proper divisors (38515904).

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

28854784 is an frugal number, since it uses more digits than its factorization.

28854784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 189 counting only the distinct ones).

The product of its digits is 573440, while the sum is 46.

The square root of 28854784 is about 5371.6649188124. The cubic root of 28854784 is about 306.7180086272.

The spelling of 28854784 in words is "twenty-eight million, eight hundred fifty-four thousand, seven hundred eighty-four".