28566127 has 2 divisors, whose sum is σ = 28566128. Its totient is φ = 28566126.

The previous prime is 28566119. The next prime is 28566143. The reversal of 28566127 is 72166582.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28566127 - 2³ = 28566119 is a prime.

It is a super-2 number, since 2×28566127² = 1632047223560258, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1774459 and since 28566127 and 1774459 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28566107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14283063 + 14283064.

It is an arithmetic number, because the mean of its divisors is an integer number (14283064).

Almost surely, 2^28566127 is an apocalyptic number.

28566127 is a deficient number, since it is larger than the sum of its proper divisors (1).

28566127 is an equidigital number, since it uses as much as digits as its factorization.

28566127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 28566127 is about 5344.7288986440. The cubic root of 28566127 is about 305.6917988464.

The spelling of 28566127 in words is "twenty-eight million, five hundred sixty-six thousand, one hundred twenty-seven".