27330389 has 2 divisors, whose sum is σ = 27330390. Its totient is φ = 27330388.

The previous prime is 27330353. The next prime is 27330409. The reversal of 27330389 is 98303372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24423364 + 2907025 = 4942^2 + 1705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27330389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27330889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13665194 + 13665195.

It is an arithmetic number, because the mean of its divisors is an integer number (13665195).

Almost surely, 2^27330389 is an apocalyptic number.

It is an amenable number.

27330389 is a deficient number, since it is larger than the sum of its proper divisors (1).

27330389 is an equidigital number, since it uses as much as digits as its factorization.

27330389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 27330389 is about 5227.8474537806. The cubic root of 27330389 is about 301.2187054491.

The spelling of 27330389 in words is "twenty-seven million, three hundred thirty thousand, three hundred eighty-nine".