28682023 has 4 divisors (see below), whose sum is σ = 28702728. Its totient is φ = 28661320.

The previous prime is 28682011. The next prime is 28682033. The reversal of 28682023 is 32028682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28682023 - 2⁹ = 28681511 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28682033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8113 + ... + 11098.

It is an arithmetic number, because the mean of its divisors is an integer number (7175682).

Almost surely, 2^28682023 is an apocalyptic number.

28682023 is a deficient number, since it is larger than the sum of its proper divisors (20705).

28682023 is a wasteful number, since it uses less digits than its factorization.

28682023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20704.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 28682023 is about 5355.5600080664. The cubic root of 28682023 is about 306.1046497263.

The spelling of 28682023 in words is "twenty-eight million, six hundred eighty-two thousand, twenty-three".