28385106 has 8 divisors (see below), whose sum is σ = 56770224. Its totient is φ = 9461700.

The previous prime is 28385081. The next prime is 28385111. The reversal of 28385106 is 60158382.

It is a happy number.

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

28385106 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2365420 + ... + 2365431.

It is an arithmetic number, because the mean of its divisors is an integer number (7096278).

Almost surely, 2^28385106 is an apocalyptic number.

28385106 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.

28385106 is a wasteful number, since it uses less digits than its factorization.

28385106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4730856.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 28385106 is about 5327.7674498799. The cubic root of 28385106 is about 305.0447161886.

The spelling of 28385106 in words is "twenty-eight million, three hundred eighty-five thousand, one hundred six".