28958323 has 4 divisors (see below), whose sum is σ = 28970568. Its totient is φ = 28946080.

The previous prime is 28958317. The next prime is 28958339. The reversal of 28958323 is 32385982.

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 28958323 - 2⁵ = 28958291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28958353) 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, 1318 + ... + 7723.

It is an arithmetic number, because the mean of its divisors is an integer number (7242642).

Almost surely, 2^28958323 is an apocalyptic number.

28958323 is a deficient number, since it is larger than the sum of its proper divisors (12245).

28958323 is an equidigital number, since it uses as much as digits as its factorization.

28958323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12244.

The product of its digits is 103680, while the sum is 40.

The square root of 28958323 is about 5381.2938035383. The cubic root of 28958323 is about 307.0844339056.

The spelling of 28958323 in words is "twenty-eight million, nine hundred fifty-eight thousand, three hundred twenty-three".