28802816 has 36 divisors (see below), whose sum is σ = 65710512. Its totient is φ = 12343296.

The previous prime is 28802801. The next prime is 28802833. The reversal of 28802816 is 61820882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6245 + ... + 9828.

It is an arithmetic number, because the mean of its divisors is an integer number (1825292).

Almost surely, 2^28802816 is an apocalyptic number.

It is an amenable number.

28802816 is an abundant number, since it is smaller than the sum of its proper divisors (36907696).

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

28802816 is an equidigital number, since it uses as much as digits as its factorization.

28802816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16096 (or 16082 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 28802816 is about 5366.8255048958. The cubic root of 28802816 is about 306.5337630363.

The spelling of 28802816 in words is "twenty-eight million, eight hundred two thousand, eight hundred sixteen".