28022567 has 2 divisors, whose sum is σ = 28022568. Its totient is φ = 28022566.

The previous prime is 28022563. The next prime is 28022569. The reversal of 28022567 is 76522082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28022567 - 2² = 28022563 is a prime.

It is a super-2 number, since 2×28022567² = 1570528522538978, which contains 22 as substring.

Together with 28022569, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28022563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14011283 + 14011284.

It is an arithmetic number, because the mean of its divisors is an integer number (14011284).

Almost surely, 2^28022567 is an apocalyptic number.

28022567 is a deficient number, since it is larger than the sum of its proper divisors (1).

28022567 is an equidigital number, since it uses as much as digits as its factorization.

28022567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 28022567 is about 5293.6345737121. The cubic root of 28022567 is about 303.7404546894.

The spelling of 28022567 in words is "twenty-eight million, twenty-two thousand, five hundred sixty-seven".