27987353 has 2 divisors, whose sum is σ = 27987354. Its totient is φ = 27987352.

The previous prime is 27987341. The next prime is 27987359. The reversal of 27987353 is 35378972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21418384 + 6568969 = 4628^2 + 2563^2 .

It is a cyclic number.

It is not a de Polignac number, because 27987353 - 2⁸ = 27987097 is a prime.

It is not a weakly prime, because it can be changed into another prime (27987359) 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, 13993676 + 13993677.

It is an arithmetic number, because the mean of its divisors is an integer number (13993677).

Almost surely, 2^27987353 is an apocalyptic number.

It is an amenable number.

27987353 is a deficient number, since it is larger than the sum of its proper divisors (1).

27987353 is an equidigital number, since it uses as much as digits as its factorization.

27987353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 44.

The square root of 27987353 is about 5290.3074579839. The cubic root of 27987353 is about 303.6131715635.

The spelling of 27987353 in words is "twenty-seven million, nine hundred eighty-seven thousand, three hundred fifty-three".