28268764 has 24 divisors (see below), whose sum is σ = 50254848. Its totient is φ = 13912560.

The previous prime is 28268753. The next prime is 28268783. The reversal of 28268764 is 46786282.

It is a self number, because there is not a number n which added to its sum of digits gives 28268764.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124419 + ... + 124645.

It is an arithmetic number, because the mean of its divisors is an integer number (2093952).

Almost surely, 2^28268764 is an apocalyptic number.

It is an amenable number.

28268764 is a deficient number, since it is larger than the sum of its proper divisors (21986084).

28268764 is a wasteful number, since it uses less digits than its factorization.

28268764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 583 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 28268764 is about 5316.8377819903. The cubic root of 28268764 is about 304.6273833566.

The spelling of 28268764 in words is "twenty-eight million, two hundred sixty-eight thousand, seven hundred sixty-four".