28183113 has 32 divisors (see below), whose sum is σ = 48894720. Its totient is φ = 15707520.

The previous prime is 28183109. The next prime is 28183147. The reversal of 28183113 is 31138182.

It is not a de Polignac number, because 28183113 - 2² = 28183109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (28183153) 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 31 ways as a sum of consecutive naturals, for example, 5931 + ... + 9567.

It is an arithmetic number, because the mean of its divisors is an integer number (1527960).

Almost surely, 2^28183113 is an apocalyptic number.

It is an amenable number.

28183113 is a deficient number, since it is larger than the sum of its proper divisors (20711607).

28183113 is a wasteful number, since it uses less digits than its factorization.

28183113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694 (or 3688 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 28183113 is about 5308.7769777982. The cubic root of 28183113 is about 304.3194105003.

The spelling of 28183113 in words is "twenty-eight million, one hundred eighty-three thousand, one hundred thirteen".