28093023 has 18 divisors (see below), whose sum is σ = 47204664. Its totient is φ = 16052904.

The previous prime is 28093019. The next prime is 28093031. The reversal of 28093023 is 32039082.

It is not a de Polignac number, because 28093023 - 2² = 28093019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28093003) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 31411 + ... + 32292.

Almost surely, 2^28093023 is an apocalyptic number.

28093023 is a deficient number, since it is larger than the sum of its proper divisors (19111641).

28093023 is a wasteful number, since it uses less digits than its factorization.

28093023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63723 (or 63713 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 28093023 is about 5300.2851810068. The cubic root of 28093023 is about 303.9948023984.

It can be divided in two parts, 2809 and 3023, that added together give a cube (5832 = 18³).

The spelling of 28093023 in words is "twenty-eight million, ninety-three thousand, twenty-three".