27097769 has 2 divisors, whose sum is σ = 27097770. Its totient is φ = 27097768.

The previous prime is 27097699. The next prime is 27097771. The reversal of 27097769 is 96779072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18318400 + 8779369 = 4280^2 + 2963^2 .

It is a cyclic number.

It is not a de Polignac number, because 27097769 - 2¹⁶ = 27032233 is a prime.

It is a super-2 number, since 2×27097769² = 1468578169554722, which contains 22 as substring.

Together with 27097771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27093769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13548884 + 13548885.

It is an arithmetic number, because the mean of its divisors is an integer number (13548885).

Almost surely, 2^27097769 is an apocalyptic number.

It is an amenable number.

27097769 is a deficient number, since it is larger than the sum of its proper divisors (1).

27097769 is an equidigital number, since it uses as much as digits as its factorization.

27097769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 333396, while the sum is 47.

The square root of 27097769 is about 5205.5517478938. The cubic root of 27097769 is about 300.3616712120.

The spelling of 27097769 in words is "twenty-seven million, ninety-seven thousand, seven hundred sixty-nine".