28727087 has 2 divisors, whose sum is σ = 28727088. Its totient is φ = 28727086.

The previous prime is 28727071. The next prime is 28727117. The reversal of 28727087 is 78072782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28727087 - 2⁴ = 28727071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28727057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14363543 + 14363544.

It is an arithmetic number, because the mean of its divisors is an integer number (14363544).

Almost surely, 2^28727087 is an apocalyptic number.

28727087 is a deficient number, since it is larger than the sum of its proper divisors (1).

28727087 is an equidigital number, since it uses as much as digits as its factorization.

28727087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 28727087 is about 5359.7655732317. The cubic root of 28727087 is about 306.2648787995.

The spelling of 28727087 in words is "twenty-eight million, seven hundred twenty-seven thousand, eighty-seven".