28883223 has 12 divisors (see below), whose sum is σ = 43265768. Its totient is φ = 19255320.

The previous prime is 28883213. The next prime is 28883233. The reversal of 28883223 is 32238882.

It is an interprime number because it is at equal distance from previous prime (28883213) and next prime (28883233).

It is not a de Polignac number, because 28883223 - 2⁵ = 28883191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28883213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59188 + ... + 59673.

Almost surely, 2^28883223 is an apocalyptic number.

28883223 is a deficient number, since it is larger than the sum of its proper divisors (14382545).

28883223 is an equidigital number, since it uses as much as digits as its factorization.

28883223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118876 (or 118864 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 28883223 is about 5374.3113977513. The cubic root of 28883223 is about 306.8187416555.

The spelling of 28883223 in words is "twenty-eight million, eight hundred eighty-three thousand, two hundred twenty-three".