27383989 has 2 divisors, whose sum is σ = 27383990. Its totient is φ = 27383988.

The previous prime is 27383977. The next prime is 27384011. The reversal of 27383989 is 98938372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26316900 + 1067089 = 5130^2 + 1033^2 .

It is a cyclic number.

It is not a de Polignac number, because 27383989 - 2¹⁵ = 27351221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27383969) 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, 13691994 + 13691995.

It is an arithmetic number, because the mean of its divisors is an integer number (13691995).

Almost surely, 2^27383989 is an apocalyptic number.

It is an amenable number.

27383989 is a deficient number, since it is larger than the sum of its proper divisors (1).

27383989 is an equidigital number, since it uses as much as digits as its factorization.

27383989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 49.

The square root of 27383989 is about 5232.9713356754. The cubic root of 27383989 is about 301.4154922497.

The spelling of 27383989 in words is "twenty-seven million, three hundred eighty-three thousand, nine hundred eighty-nine".