28246784 has 18 divisors (see below), whose sum is σ = 56383740. Its totient is φ = 14123264.

The previous prime is 28246769. The next prime is 28246793. The reversal of 28246784 is 48764282.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54914 + ... + 55425.

It is an arithmetic number, because the mean of its divisors is an integer number (3132430).

Almost surely, 2^28246784 is an apocalyptic number.

It is an amenable number.

28246784 is a deficient number, since it is larger than the sum of its proper divisors (28136956).

28246784 is an equidigital number, since it uses as much as digits as its factorization.

28246784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110355 (or 110341 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 28246784 is about 5314.7703619253. The cubic root of 28246784 is about 304.5484099000.

The spelling of 28246784 in words is "twenty-eight million, two hundred forty-six thousand, seven hundred eighty-four".