28275323 has 2 divisors, whose sum is σ = 28275324. Its totient is φ = 28275322.

The previous prime is 28275307. The next prime is 28275353. The reversal of 28275323 is 32357282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28275323 - 2⁴ = 28275307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28275323.

It is not a weakly prime, because it can be changed into another prime (28275353) 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 as a sum of consecutive naturals, namely, 14137661 + 14137662.

It is an arithmetic number, because the mean of its divisors is an integer number (14137662).

Almost surely, 2^28275323 is an apocalyptic number.

28275323 is a deficient number, since it is larger than the sum of its proper divisors (1).

28275323 is an equidigital number, since it uses as much as digits as its factorization.

28275323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 32.

The square root of 28275323 is about 5317.4545602196. The cubic root of 28275323 is about 304.6509417088.

The spelling of 28275323 in words is "twenty-eight million, two hundred seventy-five thousand, three hundred twenty-three".