28847264 has 48 divisors (see below), whose sum is σ = 58909032. Its totient is φ = 13897728.

The previous prime is 28847243. The next prime is 28847279. The reversal of 28847264 is 46274882.

It can be written as a sum of positive squares in 4 ways, for example, as 24403600 + 4443664 = 4940^2 + 2108^2 .

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, 123692 + ... + 123924.

Almost surely, 2^28847264 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 28847264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29454516).

28847264 is an abundant number, since it is smaller than the sum of its proper divisors (30061768).

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

28847264 is a wasteful number, since it uses less digits than its factorization.

28847264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 361 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 28847264 is about 5370.9649040000. The cubic root of 28847264 is about 306.6913611704.

The spelling of 28847264 in words is "twenty-eight million, eight hundred forty-seven thousand, two hundred sixty-four".