28265996 has 24 divisors (see below), whose sum is σ = 56804160. Its totient is φ = 12171600.

The previous prime is 28265983. The next prime is 28266059. The reversal of 28265996 is 69956282.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28265996.

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 7 ways as a sum of consecutive naturals, for example, 16070 + ... + 17741.

It is an arithmetic number, because the mean of its divisors is an integer number (2366840).

Almost surely, 2^28265996 is an apocalyptic number.

It is an amenable number.

28265996 is an abundant number, since it is smaller than the sum of its proper divisors (28538164).

28265996 is a wasteful number, since it uses less digits than its factorization.

28265996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33845 (or 33843 counting only the distinct ones).

The product of its digits is 466560, while the sum is 47.

The square root of 28265996 is about 5316.5774705162. The cubic root of 28265996 is about 304.6174402722.

The spelling of 28265996 in words is "twenty-eight million, two hundred sixty-five thousand, nine hundred ninety-six".