27090247 has 2 divisors, whose sum is σ = 27090248. Its totient is φ = 27090246.

The previous prime is 27090241. The next prime is 27090289. The reversal of 27090247 is 74209072.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27090247 - 2¹⁵ = 27057479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27090241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13545123 + 13545124.

It is an arithmetic number, because the mean of its divisors is an integer number (13545124).

Almost surely, 2^27090247 is an apocalyptic number.

27090247 is a deficient number, since it is larger than the sum of its proper divisors (1).

27090247 is an equidigital number, since it uses as much as digits as its factorization.

27090247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 27090247 is about 5204.8291998874. The cubic root of 27090247 is about 300.3338764321. Note that the first 3 decimals are identical.

The spelling of 27090247 in words is "twenty-seven million, ninety thousand, two hundred forty-seven".