28082923 has 8 divisors (see below), whose sum is σ = 31288320. Its totient is φ = 24986280.

The previous prime is 28082897. The next prime is 28082947. The reversal of 28082923 is 32928082.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28082923 - 2⁵ = 28082891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28082953) 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, 26643 + ... + 27676.

It is an arithmetic number, because the mean of its divisors is an integer number (3911040).

Almost surely, 2^28082923 is an apocalyptic number.

28082923 is a deficient number, since it is larger than the sum of its proper divisors (3205397).

28082923 is a wasteful number, since it uses less digits than its factorization.

28082923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54377.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 28082923 is about 5299.3323164338. The cubic root of 28082923 is about 303.9583673077.

The spelling of 28082923 in words is "twenty-eight million, eighty-two thousand, nine hundred twenty-three".