28008866 has 8 divisors (see below), whose sum is σ = 42039120. Its totient is φ = 13995828.

The previous prime is 28008853. The next prime is 28008887. The reversal of 28008866 is 66880082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145 + ... + 7571.

It is an arithmetic number, because the mean of its divisors is an integer number (5254890).

Almost surely, 2^28008866 is an apocalyptic number.

28008866 is a deficient number, since it is larger than the sum of its proper divisors (14030254).

28008866 is a wasteful number, since it uses less digits than its factorization.

28008866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8608.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 28008866 is about 5292.3403140766. The cubic root of 28008866 is about 303.6909442789.

The spelling of 28008866 in words is "twenty-eight million, eight thousand, eight hundred sixty-six".