27300389 has 2 divisors, whose sum is σ = 27300390. Its totient is φ = 27300388.

The previous prime is 27300337. The next prime is 27300391. The reversal of 27300389 is 98300372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17156164 + 10144225 = 4142^2 + 3185^2 .

It is a cyclic number.

It is not a de Polignac number, because 27300389 - 2²⁴ = 10523173 is a prime.

It is a super-2 number, since 2×27300389² = 1490622479102642, which contains 22 as substring.

Together with 27300391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27300089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13650194 + 13650195.

It is an arithmetic number, because the mean of its divisors is an integer number (13650195).

Almost surely, 2^27300389 is an apocalyptic number.

It is an amenable number.

27300389 is a deficient number, since it is larger than the sum of its proper divisors (1).

27300389 is an equidigital number, since it uses as much as digits as its factorization.

27300389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 27300389 is about 5224.9774162191. The cubic root of 27300389 is about 301.1084512604.

The spelling of 27300389 in words is "twenty-seven million, three hundred thousand, three hundred eighty-nine".