28447105 has 8 divisors (see below), whose sum is σ = 34171200. Its totient is φ = 22734576.

The previous prime is 28447063. The next prime is 28447157. The reversal of 28447105 is 50174482.

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 28447105 - 2²³ = 20058497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4036 + ... + 8554.

It is an arithmetic number, because the mean of its divisors is an integer number (4271400).

Almost surely, 2^28447105 is an apocalyptic number.

It is an amenable number.

28447105 is a deficient number, since it is larger than the sum of its proper divisors (5724095).

28447105 is a wasteful number, since it uses less digits than its factorization.

28447105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5783.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 28447105 is about 5333.5827545844. The cubic root of 28447105 is about 305.2666484753.

The spelling of 28447105 in words is "twenty-eight million, four hundred forty-seven thousand, one hundred five".