27269989 has 8 divisors (see below), whose sum is σ = 29348568. Its totient is φ = 25244160.

The previous prime is 27269969. The next prime is 27270029. The reversal of 27269989 is 98996272.

It can be written as a sum of positive squares in 4 ways, for example, as 1361889 + 25908100 = 1167^2 + 5090^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27269989 - 2⁹ = 27269477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27269909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12112 + ... + 14185.

It is an arithmetic number, because the mean of its divisors is an integer number (3668571).

Almost surely, 2^27269989 is an apocalyptic number.

It is an amenable number.

27269989 is a deficient number, since it is larger than the sum of its proper divisors (2078579).

27269989 is a wasteful number, since it uses less digits than its factorization.

27269989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26375.

The product of its digits is 979776, while the sum is 52.

The square root of 27269989 is about 5222.0675024362. The cubic root of 27269989 is about 300.9966445912.

The spelling of 27269989 in words is "twenty-seven million, two hundred sixty-nine thousand, nine hundred eighty-nine".