28735323 has 4 divisors (see below), whose sum is σ = 38313768. Its totient is φ = 19156880.

The previous prime is 28735319. The next prime is 28735327. The reversal of 28735323 is 32353782.

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

It is an interprime number because it is at equal distance from previous prime (28735319) and next prime (28735327).

It is a cyclic number.

It is not a de Polignac number, because 28735323 - 2² = 28735319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28735327) 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 3 ways as a sum of consecutive naturals, for example, 4789218 + ... + 4789223.

It is an arithmetic number, because the mean of its divisors is an integer number (9578442).

Almost surely, 2^28735323 is an apocalyptic number.

28735323 is a deficient number, since it is larger than the sum of its proper divisors (9578445).

28735323 is an equidigital number, since it uses as much as digits as its factorization.

28735323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9578444.

The product of its digits is 30240, while the sum is 33.

The square root of 28735323 is about 5360.5338353563. The cubic root of 28735323 is about 306.2941445180.

The spelling of 28735323 in words is "twenty-eight million, seven hundred thirty-five thousand, three hundred twenty-three".