27389269 has 2 divisors, whose sum is σ = 27389270. Its totient is φ = 27389268.

The previous prime is 27389267. The next prime is 27389291. The reversal of 27389269 is 96298372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25100100 + 2289169 = 5010^2 + 1513^2 .

It is a cyclic number.

It is not a de Polignac number, because 27389269 - 2¹ = 27389267 is a prime.

It is a super-2 number, since 2×27389269² = 1500344112708722, which contains 22 as substring.

Together with 27389267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27389267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13694634 + 13694635.

It is an arithmetic number, because the mean of its divisors is an integer number (13694635).

Almost surely, 2^27389269 is an apocalyptic number.

It is an amenable number.

27389269 is a deficient number, since it is larger than the sum of its proper divisors (1).

27389269 is an equidigital number, since it uses as much as digits as its factorization.

27389269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 27389269 is about 5233.4758048547. The cubic root of 27389269 is about 301.4348633199.

The spelling of 27389269 in words is "twenty-seven million, three hundred eighty-nine thousand, two hundred sixty-nine".