27987283 has 2 divisors, whose sum is σ = 27987284. Its totient is φ = 27987282.

The previous prime is 27987259. The next prime is 27987301. The reversal of 27987283 is 38278972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27987283 - 2²¹ = 25890131 is a prime.

It is not a weakly prime, because it can be changed into another prime (27957283) 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, 13993641 + 13993642.

It is an arithmetic number, because the mean of its divisors is an integer number (13993642).

Almost surely, 2^27987283 is an apocalyptic number.

27987283 is a deficient number, since it is larger than the sum of its proper divisors (1).

27987283 is an equidigital number, since it uses as much as digits as its factorization.

27987283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 46.

The square root of 27987283 is about 5290.3008421072. The cubic root of 27987283 is about 303.6129184380.

The spelling of 27987283 in words is "twenty-seven million, nine hundred eighty-seven thousand, two hundred eighty-three".