28886208 has 112 divisors (see below), whose sum is σ = 83978496. Its totient is φ = 8709120.

The previous prime is 28886197. The next prime is 28886227. The reversal of 28886208 is 80268882.

It is a self number, because there is not a number n which added to its sum of digits gives 28886208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177135 + ... + 177297.

It is an arithmetic number, because the mean of its divisors is an integer number (749808).

Almost surely, 2^28886208 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 28886208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41989248).

28886208 is an abundant number, since it is smaller than the sum of its proper divisors (55092288).

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

28886208 is a wasteful number, since it uses less digits than its factorization.

28886208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 28886208 is about 5374.5891005732. The cubic root of 28886208 is about 306.8293109099.

The spelling of 28886208 in words is "twenty-eight million, eight hundred eighty-six thousand, two hundred eight".