28896727 has 2 divisors, whose sum is σ = 28896728. Its totient is φ = 28896726.

The previous prime is 28896697. The next prime is 28896733. The reversal of 28896727 is 72769882.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28896727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28896797) 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, 14448363 + 14448364.

It is an arithmetic number, because the mean of its divisors is an integer number (14448364).

Almost surely, 2^28896727 is an apocalyptic number.

28896727 is a deficient number, since it is larger than the sum of its proper divisors (1).

28896727 is an equidigital number, since it uses as much as digits as its factorization.

28896727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 49.

The square root of 28896727 is about 5375.5675979379. The cubic root of 28896727 is about 306.8665506638.

The spelling of 28896727 in words is "twenty-eight million, eight hundred ninety-six thousand, seven hundred twenty-seven".