28111696 has 20 divisors (see below), whose sum is σ = 54571284. Its totient is φ = 14028800.

The previous prime is 28111679. The next prime is 28111709. The reversal of 28111696 is 69611182.

It can be written as a sum of positive squares in 2 ways, for example, as 17640000 + 10471696 = 4200^2 + 3236^2 .

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 3 ways as a sum of consecutive naturals, for example, 8886 + ... + 11626.

Almost surely, 2^28111696 is an apocalyptic number.

It is an amenable number.

28111696 is a deficient number, since it is larger than the sum of its proper divisors (26459588).

28111696 is a wasteful number, since it uses less digits than its factorization.

28111696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390 (or 3384 counting only the distinct ones).

The product of its digits is 5184, while the sum is 34.

The square root of 28111696 is about 5302.0463973828. The cubic root of 28111696 is about 304.0621410364.

The spelling of 28111696 in words is "twenty-eight million, one hundred eleven thousand, six hundred ninety-six".