28835023 has 4 divisors (see below), whose sum is σ = 32954320. Its totient is φ = 24715728.

The previous prime is 28835003. The next prime is 28835029. The reversal of 28835023 is 32053882.

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 28835023 - 2²¹ = 26737871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28835029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2059638 + ... + 2059651.

It is an arithmetic number, because the mean of its divisors is an integer number (8238580).

Almost surely, 2^28835023 is an apocalyptic number.

28835023 is a deficient number, since it is larger than the sum of its proper divisors (4119297).

28835023 is an equidigital number, since it uses as much as digits as its factorization.

28835023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4119296.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 28835023 is about 5369.8252299307. The cubic root of 28835023 is about 306.6479747324.

The spelling of 28835023 in words is "twenty-eight million, eight hundred thirty-five thousand, twenty-three".