28048023 has 6 divisors (see below), whose sum is σ = 40513824. Its totient is φ = 18698676.

The previous prime is 28048021. The next prime is 28048043. The reversal of 28048023 is 32084082.

It is not a de Polignac number, because 28048023 - 2¹ = 28048021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28048021) 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 5 ways as a sum of consecutive naturals, for example, 1558215 + ... + 1558232.

It is an arithmetic number, because the mean of its divisors is an integer number (6752304).

Almost surely, 2^28048023 is an apocalyptic number.

28048023 is a deficient number, since it is larger than the sum of its proper divisors (12465801).

28048023 is a wasteful number, since it uses less digits than its factorization.

28048023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116453 (or 3116450 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 28048023 is about 5296.0384250872. The cubic root of 28048023 is about 303.8324005476.

The spelling of 28048023 in words is "twenty-eight million, forty-eight thousand, twenty-three".