27083989 has 2 divisors, whose sum is σ = 27083990. Its totient is φ = 27083988.

The previous prime is 27083983. The next prime is 27084017. The reversal of 27083989 is 98938072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25583364 + 1500625 = 5058^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 27083989 - 2³ = 27083981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27083981) 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, 13541994 + 13541995.

It is an arithmetic number, because the mean of its divisors is an integer number (13541995).

Almost surely, 2^27083989 is an apocalyptic number.

It is an amenable number.

27083989 is a deficient number, since it is larger than the sum of its proper divisors (1).

27083989 is an equidigital number, since it uses as much as digits as its factorization.

27083989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 27083989 is about 5204.2279926998. The cubic root of 27083989 is about 300.3107483774.

The spelling of 27083989 in words is "twenty-seven million, eighty-three thousand, nine hundred eighty-nine".