28110868 has 6 divisors (see below), whose sum is σ = 49194026. Its totient is φ = 14055432.

The previous prime is 28110833. The next prime is 28110881. The reversal of 28110868 is 86801182.

It can be written as a sum of positive squares in only one way, i.e., 24621444 + 3489424 = 4962^2 + 1868^2 .

It is a congruent number.

It is an unprimeable number.

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, 3513855 + ... + 3513862.

Almost surely, 2^28110868 is an apocalyptic number.

It is an amenable number.

28110868 is a deficient number, since it is larger than the sum of its proper divisors (21083158).

28110868 is a wasteful number, since it uses less digits than its factorization.

28110868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7027721 (or 7027719 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 28110868 is about 5301.9683137491. The cubic root of 28110868 is about 304.0591557318.

The spelling of 28110868 in words is "twenty-eight million, one hundred ten thousand, eight hundred sixty-eight".