28436105 has 8 divisors (see below), whose sum is σ = 34296000. Its totient is φ = 22633776.

The previous prime is 28436069. The next prime is 28436147. The reversal of 28436105 is 50163482.

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 28436105 - 2¹⁰ = 28435081 is a prime.

It is a super-2 number, since 2×28436105² = 1617224135142050, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 13295 + ... + 15284.

It is an arithmetic number, because the mean of its divisors is an integer number (4287000).

Almost surely, 2^28436105 is an apocalyptic number.

It is an amenable number.

28436105 is a deficient number, since it is larger than the sum of its proper divisors (5859895).

28436105 is a wasteful number, since it uses less digits than its factorization.

28436105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28783.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 28436105 is about 5332.5514531039. The cubic root of 28436105 is about 305.2272963041.

Adding to 28436105 its reverse (50163482), we get a palindrome (78599587).

The spelling of 28436105 in words is "twenty-eight million, four hundred thirty-six thousand, one hundred five".