28346227 has 16 divisors (see below), whose sum is σ = 35338240. Its totient is φ = 22138272.

The previous prime is 28346221. The next prime is 28346239. The reversal of 28346227 is 72264382.

It is not a de Polignac number, because 28346227 - 2⁷ = 28346099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28346192 and 28346201.

It is not an unprimeable number, because it can be changed into a prime (28346221) 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 15 ways as a sum of consecutive naturals, for example, 5218 + ... + 9160.

It is an arithmetic number, because the mean of its divisors is an integer number (2208640).

Almost surely, 2^28346227 is an apocalyptic number.

28346227 is a deficient number, since it is larger than the sum of its proper divisors (6992013).

28346227 is a wasteful number, since it uses less digits than its factorization.

28346227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042.

The product of its digits is 32256, while the sum is 34.

The square root of 28346227 is about 5324.1174855557. The cubic root of 28346227 is about 304.9053795891.

The spelling of 28346227 in words is "twenty-eight million, three hundred forty-six thousand, two hundred twenty-seven".