28883233 has 2 divisors, whose sum is σ = 28883234. Its totient is φ = 28883232.

The previous prime is 28883213. The next prime is 28883237. The reversal of 28883233 is 33238882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28005264 + 877969 = 5292^2 + 937^2 .

It is a cyclic number.

It is not a de Polignac number, because 28883233 - 2⁵ = 28883201 is a prime.

It is a super-2 number, since 2×28883233² = 1668482297064578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28883192 and 28883201.

It is not a weakly prime, because it can be changed into another prime (28883237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14441616 + 14441617.

It is an arithmetic number, because the mean of its divisors is an integer number (14441617).

Almost surely, 2^28883233 is an apocalyptic number.

It is an amenable number.

28883233 is a deficient number, since it is larger than the sum of its proper divisors (1).

28883233 is an equidigital number, since it uses as much as digits as its factorization.

28883233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 37.

The square root of 28883233 is about 5374.3123281030. The cubic root of 28883233 is about 306.8187770646.

It can be divided in two parts, 288 and 83233, that added together give a 4-th power (83521 = 17⁴).

The spelling of 28883233 in words is "twenty-eight million, eight hundred eighty-three thousand, two hundred thirty-three".