27665063 has 2 divisors, whose sum is σ = 27665064. Its totient is φ = 27665062.

The previous prime is 27665023. The next prime is 27665081. The reversal of 27665063 is 36056672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27665063 - 2¹⁶ = 27599527 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27665003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13832531 + 13832532.

It is an arithmetic number, because the mean of its divisors is an integer number (13832532).

Almost surely, 2^27665063 is an apocalyptic number.

27665063 is a deficient number, since it is larger than the sum of its proper divisors (1).

27665063 is an equidigital number, since it uses as much as digits as its factorization.

27665063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 27665063 is about 5259.7588347756. The cubic root of 27665063 is about 302.4432441388.

The spelling of 27665063 in words is "twenty-seven million, six hundred sixty-five thousand, sixty-three".