27027761 has 2 divisors, whose sum is σ = 27027762. Its totient is φ = 27027760.

The previous prime is 27027751. The next prime is 27027769. The reversal of 27027761 is 16772072.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22800625 + 4227136 = 4775^2 + 2056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27027761 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (27027769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13513880 + 13513881.

It is an arithmetic number, because the mean of its divisors is an integer number (13513881).

Almost surely, 2^27027761 is an apocalyptic number.

It is an amenable number.

27027761 is a deficient number, since it is larger than the sum of its proper divisors (1).

27027761 is an equidigital number, since it uses as much as digits as its factorization.

27027761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 27027761 is about 5198.8230398812. The cubic root of 27027761 is about 300.1027832998.

The spelling of 27027761 in words is "twenty-seven million, twenty-seven thousand, seven hundred sixty-one".