28183361 has 8 divisors (see below), whose sum is σ = 28923840. Its totient is φ = 27446832.

The previous prime is 28183321. The next prime is 28183369. The reversal of 28183361 is 16338182.

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 28183361 - 2¹⁸ = 27921217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28183369) 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, 18131 + ... + 19623.

It is an arithmetic number, because the mean of its divisors is an integer number (3615480).

Almost surely, 2^28183361 is an apocalyptic number.

It is an amenable number.

28183361 is a deficient number, since it is larger than the sum of its proper divisors (740479).

28183361 is a wasteful number, since it uses less digits than its factorization.

28183361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975.

The product of its digits is 6912, while the sum is 32.

The square root of 28183361 is about 5308.8003352923. The cubic root of 28183361 is about 304.3203031269.

The spelling of 28183361 in words is "twenty-eight million, one hundred eighty-three thousand, three hundred sixty-one".