28866608 has 20 divisors (see below), whose sum is σ = 56485968. Its totient is φ = 14289600.

The previous prime is 28866599. The next prime is 28866637. The reversal of 28866608 is 80666882.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7316 + ... + 10547.

Almost surely, 2^28866608 is an apocalyptic number.

It is an amenable number.

28866608 is a deficient number, since it is larger than the sum of its proper divisors (27619360).

28866608 is a wasteful number, since it uses less digits than its factorization.

28866608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17972 (or 17966 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 28866608 is about 5372.7653959577. The cubic root of 28866608 is about 306.7598981393.

The spelling of 28866608 in words is "twenty-eight million, eight hundred sixty-six thousand, six hundred eight".