28012627 has 2 divisors, whose sum is σ = 28012628. Its totient is φ = 28012626.

The previous prime is 28012619. The next prime is 28012639. The reversal of 28012627 is 72621082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28012627 - 2³ = 28012619 is a prime.

It is a super-2 number, since 2×28012627² = 1569414542882258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28012595 and 28012604.

It is not a weakly prime, because it can be changed into another prime (28012667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14006313 + 14006314.

It is an arithmetic number, because the mean of its divisors is an integer number (14006314).

Almost surely, 2^28012627 is an apocalyptic number.

28012627 is a deficient number, since it is larger than the sum of its proper divisors (1).

28012627 is an equidigital number, since it uses as much as digits as its factorization.

28012627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 28012627 is about 5292.6956269939. The cubic root of 28012627 is about 303.7045367669.

The spelling of 28012627 in words is "twenty-eight million, twelve thousand, six hundred twenty-seven".