28040627 has 2 divisors, whose sum is σ = 28040628. Its totient is φ = 28040626.

The previous prime is 28040603. The next prime is 28040653. The reversal of 28040627 is 72604082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28040627 - 2¹⁰ = 28039603 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28040627.

It is not a weakly prime, because it can be changed into another prime (28040227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14020313 + 14020314.

It is an arithmetic number, because the mean of its divisors is an integer number (14020314).

Almost surely, 2^28040627 is an apocalyptic number.

28040627 is a deficient number, since it is larger than the sum of its proper divisors (1).

28040627 is an equidigital number, since it uses as much as digits as its factorization.

28040627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 28040627 is about 5295.3401212764. The cubic root of 28040627 is about 303.8056922839.

The spelling of 28040627 in words is "twenty-eight million, forty thousand, six hundred twenty-seven".