28568814 has 8 divisors (see below), whose sum is σ = 57137640. Its totient is φ = 9522936.

The previous prime is 28568807. The next prime is 28568821. The reversal of 28568814 is 41886582.

It is an interprime number because it is at equal distance from previous prime (28568807) and next prime (28568821).

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

28568814 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2380729 + ... + 2380740.

It is an arithmetic number, because the mean of its divisors is an integer number (7142205).

Almost surely, 2^28568814 is an apocalyptic number.

28568814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28568814 is a wasteful number, since it uses less digits than its factorization.

28568814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4761474.

The product of its digits is 122880, while the sum is 42.

The square root of 28568814 is about 5344.9802618906. The cubic root of 28568814 is about 305.7013832528.

The spelling of 28568814 in words is "twenty-eight million, five hundred sixty-eight thousand, eight hundred fourteen".