28566105 has 8 divisors (see below), whose sum is σ = 45705792. Its totient is φ = 15235248.

The previous prime is 28566079. The next prime is 28566107. The reversal of 28566105 is 50166582.

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

It is not a de Polignac number, because 28566105 - 2¹¹ = 28564057 is a prime.

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 not an unprimeable number, because it can be changed into a prime (28566107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952189 + ... + 952218.

It is an arithmetic number, because the mean of its divisors is an integer number (5713224).

Almost surely, 2^28566105 is an apocalyptic number.

It is an amenable number.

28566105 is a deficient number, since it is larger than the sum of its proper divisors (17139687).

28566105 is a wasteful number, since it uses less digits than its factorization.

28566105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904415.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 28566105 is about 5344.7268405411. The cubic root of 28566105 is about 305.6917203709.

The spelling of 28566105 in words is "twenty-eight million, five hundred sixty-six thousand, one hundred five".