28064208 has 40 divisors (see below), whose sum is σ = 74190688. Its totient is φ = 9136512.

The previous prime is 28064191. The next prime is 28064219. The reversal of 28064208 is 80246082.

It is a happy number.

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, 4735 + ... + 8862.

Almost surely, 2^28064208 is an apocalyptic number.

It is an amenable number.

28064208 is an abundant number, since it is smaller than the sum of its proper divisors (46126480).

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

28064208 is a wasteful number, since it uses less digits than its factorization.

28064208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651 (or 13645 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 28064208 is about 5297.5662336586. The cubic root of 28064208 is about 303.8908310690.

The spelling of 28064208 in words is "twenty-eight million, sixty-four thousand, two hundred eight".