27001913 has 2 divisors, whose sum is σ = 27001914. Its totient is φ = 27001912.

The previous prime is 27001889. The next prime is 27001921. The reversal of 27001913 is 31910072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15147664 + 11854249 = 3892^2 + 3443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27001913 is a prime.

It is not a weakly prime, because it can be changed into another prime (27001943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13500956 + 13500957.

It is an arithmetic number, because the mean of its divisors is an integer number (13500957).

Almost surely, 2^27001913 is an apocalyptic number.

It is an amenable number.

27001913 is a deficient number, since it is larger than the sum of its proper divisors (1).

27001913 is an equidigital number, since it uses as much as digits as its factorization.

27001913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 27001913 is about 5196.3364979570. The cubic root of 27001913 is about 300.0070850179.

Adding to 27001913 its reverse (31910072), we get a palindrome (58911985).

The spelling of 27001913 in words is "twenty-seven million, one thousand, nine hundred thirteen".