28184163 has 24 divisors (see below), whose sum is σ = 46019520. Its totient is φ = 15256080.

The previous prime is 28184141. The next prime is 28184173. The reversal of 28184163 is 36148182.

It is not a de Polignac number, because 28184163 - 2⁶ = 28184099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28184173) 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 23 ways as a sum of consecutive naturals, for example, 2253 + ... + 7838.

It is an arithmetic number, because the mean of its divisors is an integer number (1917480).

Almost surely, 2^28184163 is an apocalyptic number.

28184163 is a deficient number, since it is larger than the sum of its proper divisors (17835357).

28184163 is a wasteful number, since it uses less digits than its factorization.

28184163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10127 (or 10120 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 28184163 is about 5308.8758697110. The cubic root of 28184163 is about 304.3231897304.

The spelling of 28184163 in words is "twenty-eight million, one hundred eighty-four thousand, one hundred sixty-three".