28500227 has 8 divisors (see below), whose sum is σ = 32604000. Its totient is φ = 24404544.

The previous prime is 28500163. The next prime is 28500239. The reversal of 28500227 is 72200582.

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 28500227 - 2⁶ = 28500163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28500196 and 28500205.

It is not an unprimeable number, because it can be changed into a prime (28500287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12599 + ... + 14687.

It is an arithmetic number, because the mean of its divisors is an integer number (4075500).

Almost surely, 2^28500227 is an apocalyptic number.

28500227 is a deficient number, since it is larger than the sum of its proper divisors (4103773).

28500227 is a wasteful number, since it uses less digits than its factorization.

28500227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 28500227 is about 5338.5603864712. The cubic root of 28500227 is about 305.4565481884.

The spelling of 28500227 in words is "twenty-eight million, five hundred thousand, two hundred twenty-seven".