28184039 has 8 divisors (see below), whose sum is σ = 31672032. Its totient is φ = 24884640.

The previous prime is 28184017. The next prime is 28184041. The reversal of 28184039 is 93048182.

It is a happy number.

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 28184039 - 2²⁴ = 11406823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28184099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46832 + ... + 47429.

It is an arithmetic number, because the mean of its divisors is an integer number (3959004).

Almost surely, 2^28184039 is an apocalyptic number.

28184039 is a deficient number, since it is larger than the sum of its proper divisors (3487993).

28184039 is a wasteful number, since it uses less digits than its factorization.

28184039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94297.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 28184039 is about 5308.8641911430. The cubic root of 28184039 is about 304.3227434262.

The spelling of 28184039 in words is "twenty-eight million, one hundred eighty-four thousand, thirty-nine".