28808323 has 8 divisors (see below), whose sum is σ = 29562368. Its totient is φ = 28058184.

The previous prime is 28808293. The next prime is 28808357. The reversal of 28808323 is 32380882.

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 28808323 - 2⁹ = 28807811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28808383) 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 7 ways as a sum of consecutive naturals, for example, 19186 + ... + 20632.

It is an arithmetic number, because the mean of its divisors is an integer number (3695296).

Almost surely, 2^28808323 is an apocalyptic number.

28808323 is a deficient number, since it is larger than the sum of its proper divisors (754045).

28808323 is a wasteful number, since it uses less digits than its factorization.

28808323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 28808323 is about 5367.3385397234. The cubic root of 28808323 is about 306.5532978607.

The spelling of 28808323 in words is "twenty-eight million, eight hundred eight thousand, three hundred twenty-three".