27339649 has 2 divisors, whose sum is σ = 27339650. Its totient is φ = 27339648.

The previous prime is 27339647. The next prime is 27339659. The reversal of 27339649 is 94693372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26471025 + 868624 = 5145^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 27339649 - 2¹ = 27339647 is a prime.

Together with 27339647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27339647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13669824 + 13669825.

It is an arithmetic number, because the mean of its divisors is an integer number (13669825).

Almost surely, 2^27339649 is an apocalyptic number.

It is an amenable number.

27339649 is a deficient number, since it is larger than the sum of its proper divisors (1).

27339649 is an equidigital number, since it uses as much as digits as its factorization.

27339649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 43.

The square root of 27339649 is about 5228.7330205318. The cubic root of 27339649 is about 301.2527209456.

The spelling of 27339649 in words is "twenty-seven million, three hundred thirty-nine thousand, six hundred forty-nine".