28133359 has 4 divisors (see below), whose sum is σ = 28145016. Its totient is φ = 28121704.

The previous prime is 28133353. The next prime is 28133381. The reversal of 28133359 is 95333182.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28133359 - 2⁵ = 28133327 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 (28133353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709 + ... + 7534.

It is an arithmetic number, because the mean of its divisors is an integer number (7036254).

Almost surely, 2^28133359 is an apocalyptic number.

28133359 is a deficient number, since it is larger than the sum of its proper divisors (11657).

28133359 is an equidigital number, since it uses as much as digits as its factorization.

28133359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11656.

The product of its digits is 19440, while the sum is 34.

The square root of 28133359 is about 5304.0888944285. The cubic root of 28133359 is about 304.1402248693.

The spelling of 28133359 in words is "twenty-eight million, one hundred thirty-three thousand, three hundred fifty-nine".