28884116 has 18 divisors (see below), whose sum is σ = 52395210. Its totient is φ = 13916112.

The previous prime is 28884073. The next prime is 28884133. The reversal of 28884116 is 61148882.

It can be written as a sum of positive squares in only one way, i.e., 24900100 + 3984016 = 4990^2 + 1996^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28884116.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57635 + ... + 58133.

It is an arithmetic number, because the mean of its divisors is an integer number (2910845).

Almost surely, 2^28884116 is an apocalyptic number.

It is an amenable number.

28884116 is a deficient number, since it is larger than the sum of its proper divisors (23511094).

28884116 is an equidigital number, since it uses as much as digits as its factorization.

28884116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031 (or 530 counting only the distinct ones).

The product of its digits is 24576, while the sum is 38.

The square root of 28884116 is about 5374.3944775202. The cubic root of 28884116 is about 306.8219036562.

The spelling of 28884116 in words is "twenty-eight million, eight hundred eighty-four thousand, one hundred sixteen".