27684089 has 2 divisors, whose sum is σ = 27684090. Its totient is φ = 27684088.

The previous prime is 27684079. The next prime is 27684119. The reversal of 27684089 is 98048672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25928464 + 1755625 = 5092^2 + 1325^2 .

It is a cyclic number.

It is not a de Polignac number, because 27684089 - 2¹⁶ = 27618553 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 (27684079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13842044 + 13842045.

It is an arithmetic number, because the mean of its divisors is an integer number (13842045).

Almost surely, 2^27684089 is an apocalyptic number.

It is an amenable number.

27684089 is a deficient number, since it is larger than the sum of its proper divisors (1).

27684089 is an equidigital number, since it uses as much as digits as its factorization.

27684089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 27684089 is about 5261.5671619775. The cubic root of 27684089 is about 302.5125610065.

The spelling of 27684089 in words is "twenty-seven million, six hundred eighty-four thousand, eighty-nine".