27081007 has 2 divisors, whose sum is σ = 27081008. Its totient is φ = 27081006.

The previous prime is 27080987. The next prime is 27081031. The reversal of 27081007 is 70018072.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27081007 - 2¹¹ = 27078959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27081107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13540503 + 13540504.

It is an arithmetic number, because the mean of its divisors is an integer number (13540504).

Almost surely, 2^27081007 is an apocalyptic number.

27081007 is a deficient number, since it is larger than the sum of its proper divisors (1).

27081007 is an equidigital number, since it uses as much as digits as its factorization.

27081007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 27081007 is about 5203.9414869885. The cubic root of 27081007 is about 300.2997263732.

Adding to 27081007 its reverse (70018072), we get a palindrome (97099079).

The spelling of 27081007 in words is "twenty-seven million, eighty-one thousand, seven".