27027769 has 2 divisors, whose sum is σ = 27027770. Its totient is φ = 27027768.

The previous prime is 27027761. The next prime is 27027799. The reversal of 27027769 is 96772072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21049744 + 5978025 = 4588^2 + 2445^2 .

It is a cyclic number.

It is not a de Polignac number, because 27027769 - 2³ = 27027761 is a prime.

It is a super-2 number, since 2×27027769² = 1461000594234722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27027761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13513884 + 13513885.

It is an arithmetic number, because the mean of its divisors is an integer number (13513885).

Almost surely, 2^27027769 is an apocalyptic number.

It is an amenable number.

27027769 is a deficient number, since it is larger than the sum of its proper divisors (1).

27027769 is an equidigital number, since it uses as much as digits as its factorization.

27027769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 27027769 is about 5198.8238092861. The cubic root of 27027769 is about 300.1028129091.

The spelling of 27027769 in words is "twenty-seven million, twenty-seven thousand, seven hundred sixty-nine".