28093105 has 8 divisors (see below), whose sum is σ = 33757632. Its totient is φ = 22443888.

The previous prime is 28093103. The next prime is 28093181. The reversal of 28093105 is 50139082.

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

It is a cyclic number.

It is not a de Polignac number, because 28093105 - 2¹ = 28093103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28093103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 702 + ... + 7528.

It is an arithmetic number, because the mean of its divisors is an integer number (4219704).

Almost surely, 2^28093105 is an apocalyptic number.

It is an amenable number.

28093105 is a deficient number, since it is larger than the sum of its proper divisors (5664527).

28093105 is an equidigital number, since it uses as much as digits as its factorization.

28093105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7655.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 28093105 is about 5300.2929164340. The cubic root of 28093105 is about 303.9950981723.

The spelling of 28093105 in words is "twenty-eight million, ninety-three thousand, one hundred five".