27038813 has 2 divisors, whose sum is σ = 27038814. Its totient is φ = 27038812.

The previous prime is 27038783. The next prime is 27038819. The reversal of 27038813 is 31883072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17960644 + 9078169 = 4238^2 + 3013^2 .

It is a cyclic number.

It is not a de Polignac number, because 27038813 - 2¹⁰ = 27037789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27038813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27038819) 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, 13519406 + 13519407.

It is an arithmetic number, because the mean of its divisors is an integer number (13519407).

Almost surely, 2^27038813 is an apocalyptic number.

It is an amenable number.

27038813 is a deficient number, since it is larger than the sum of its proper divisors (1).

27038813 is an equidigital number, since it uses as much as digits as its factorization.

27038813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 27038813 is about 5199.8858641320. The cubic root of 27038813 is about 300.1436830248.

The spelling of 27038813 in words is "twenty-seven million, thirty-eight thousand, eight hundred thirteen".