27441389 has 2 divisors, whose sum is σ = 27441390. Its totient is φ = 27441388.

The previous prime is 27441371. The next prime is 27441409. The reversal of 27441389 is 98314472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20097289 + 7344100 = 4483^2 + 2710^2 .

It is a cyclic number.

It is not a de Polignac number, because 27441389 - 2¹⁶ = 27375853 is a 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 (27441329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13720694 + 13720695.

It is an arithmetic number, because the mean of its divisors is an integer number (13720695).

Almost surely, 2^27441389 is an apocalyptic number.

It is an amenable number.

27441389 is a deficient number, since it is larger than the sum of its proper divisors (1).

27441389 is an equidigital number, since it uses as much as digits as its factorization.

27441389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 27441389 is about 5238.4529204718. The cubic root of 27441389 is about 301.6259458209.

The spelling of 27441389 in words is "twenty-seven million, four hundred forty-one thousand, three hundred eighty-nine".