28368566 has 16 divisors (see below), whose sum is σ = 43846224. Its totient is φ = 13755744.

The previous prime is 28368559. The next prime is 28368601. The reversal of 28368566 is 66586382.

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, 38336 + ... + 39068.

It is an arithmetic number, because the mean of its divisors is an integer number (2740389).

Almost surely, 2^28368566 is an apocalyptic number.

28368566 is a deficient number, since it is larger than the sum of its proper divisors (15477658).

28368566 is a wasteful number, since it uses less digits than its factorization.

28368566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295.

The product of its digits is 414720, while the sum is 44.

The square root of 28368566 is about 5326.2149787631. The cubic root of 28368566 is about 304.9854548291.

The spelling of 28368566 in words is "twenty-eight million, three hundred sixty-eight thousand, five hundred sixty-six".