28824216 has 32 divisors (see below), whose sum is σ = 75854400. Its totient is φ = 9102240.

The previous prime is 28824181. The next prime is 28824217. The reversal of 28824216 is 61242882.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28824217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31150 + ... + 32061.

It is an arithmetic number, because the mean of its divisors is an integer number (2370450).

Almost surely, 2^28824216 is an apocalyptic number.

It is an amenable number.

28824216 is an abundant number, since it is smaller than the sum of its proper divisors (47030184).

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

28824216 is a wasteful number, since it uses less digits than its factorization.

28824216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63239 (or 63235 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 28824216 is about 5368.8188645176. The cubic root of 28824216 is about 306.6096606914.

The spelling of 28824216 in words is "twenty-eight million, eight hundred twenty-four thousand, two hundred sixteen".