27438049 has 2 divisors, whose sum is σ = 27438050. Its totient is φ = 27438048.

The previous prime is 27438029. The next prime is 27438079. The reversal of 27438049 is 94083472.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25321024 + 2117025 = 5032^2 + 1455^2 .

It is a cyclic number.

It is not a de Polignac number, because 27438049 - 2¹⁵ = 27405281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27437999 and 27438017.

It is not a weakly prime, because it can be changed into another prime (27438029) 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, 13719024 + 13719025.

It is an arithmetic number, because the mean of its divisors is an integer number (13719025).

Almost surely, 2^27438049 is an apocalyptic number.

It is an amenable number.

27438049 is a deficient number, since it is larger than the sum of its proper divisors (1).

27438049 is an equidigital number, since it uses as much as digits as its factorization.

27438049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 27438049 is about 5238.1341143579. The cubic root of 27438049 is about 301.6137079621.

The spelling of 27438049 in words is "twenty-seven million, four hundred thirty-eight thousand, forty-nine".