28222283 has 2 divisors, whose sum is σ = 28222284. Its totient is φ = 28222282.

The previous prime is 28222279. The next prime is 28222289. The reversal of 28222283 is 38222282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28222283 - 2² = 28222279 is a prime.

It is not a weakly prime, because it can be changed into another prime (28222289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14111141 + 14111142.

It is an arithmetic number, because the mean of its divisors is an integer number (14111142).

Almost surely, 2^28222283 is an apocalyptic number.

28222283 is a deficient number, since it is larger than the sum of its proper divisors (1).

28222283 is an equidigital number, since it uses as much as digits as its factorization.

28222283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 29.

The square root of 28222283 is about 5312.4648704721. The cubic root of 28222283 is about 304.4603302677.

Subtracting 28222283 from its reverse (38222282), we obtain a palindrome (9999999).

The spelling of 28222283 in words is "twenty-eight million, two hundred twenty-two thousand, two hundred eighty-three".