27936653 has 2 divisors, whose sum is σ = 27936654. Its totient is φ = 27936652.

The previous prime is 27936647. The next prime is 27936683. The reversal of 27936653 is 35663972.

Added to its reverse (35663972) it gives a square (63600625 = 7975²).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27741289 + 195364 = 5267^2 + 442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27936653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27936653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27936613) 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, 13968326 + 13968327.

It is an arithmetic number, because the mean of its divisors is an integer number (13968327).

Almost surely, 2^27936653 is an apocalyptic number.

It is an amenable number.

27936653 is a deficient number, since it is larger than the sum of its proper divisors (1).

27936653 is an equidigital number, since it uses as much as digits as its factorization.

27936653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 41.

The square root of 27936653 is about 5285.5135039086. The cubic root of 27936653 is about 303.4297257019.

Adding to 27936653 its reverse (35663972), we get a square (63600625 = 7975²).

The spelling of 27936653 in words is "twenty-seven million, nine hundred thirty-six thousand, six hundred fifty-three".