28110884 has 6 divisors (see below), whose sum is σ = 49194054. Its totient is φ = 14055440.

The previous prime is 28110881. The next prime is 28110919. The reversal of 28110884 is 48801182.

It can be written as a sum of positive squares in only one way, i.e., 14212900 + 13897984 = 3770^2 + 3728^2 .

It is a super-2 number, since 2×28110884² = 1580443598522912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28110884.

It is not an unprimeable number, because it can be changed into a prime (28110881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3513857 + ... + 3513864.

It is an arithmetic number, because the mean of its divisors is an integer number (8199009).

Almost surely, 2^28110884 is an apocalyptic number.

It is an amenable number.

28110884 is a deficient number, since it is larger than the sum of its proper divisors (21083170).

28110884 is a wasteful number, since it uses less digits than its factorization.

28110884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7027725 (or 7027723 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 28110884 is about 5301.9698226225. The cubic root of 28110884 is about 304.0592134194.

The spelling of 28110884 in words is "twenty-eight million, one hundred ten thousand, eight hundred eighty-four".