27039913 has 2 divisors, whose sum is σ = 27039914. Its totient is φ = 27039912.

The previous prime is 27039871. The next prime is 27039917. The reversal of 27039913 is 31993072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26347689 + 692224 = 5133^2 + 832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27039913 is a prime.

It is not a weakly prime, because it can be changed into another prime (27039917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13519956 + 13519957.

It is an arithmetic number, because the mean of its divisors is an integer number (13519957).

Almost surely, 2^27039913 is an apocalyptic number.

It is an amenable number.

27039913 is a deficient number, since it is larger than the sum of its proper divisors (1).

27039913 is an equidigital number, since it uses as much as digits as its factorization.

27039913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 27039913 is about 5199.9916346087. The cubic root of 27039913 is about 300.1477531440.

The spelling of 27039913 in words is "twenty-seven million, thirty-nine thousand, nine hundred thirteen".