27884249 has 2 divisors, whose sum is σ = 27884250. Its totient is φ = 27884248.

The previous prime is 27884239. The next prime is 27884279. The reversal of 27884249 is 94248872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24571849 + 3312400 = 4957^2 + 1820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27884249 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (27884239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13942124 + 13942125.

It is an arithmetic number, because the mean of its divisors is an integer number (13942125).

Almost surely, 2^27884249 is an apocalyptic number.

It is an amenable number.

27884249 is a deficient number, since it is larger than the sum of its proper divisors (1).

27884249 is an equidigital number, since it uses as much as digits as its factorization.

27884249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 44.

The square root of 27884249 is about 5280.5538535271. The cubic root of 27884249 is about 303.2398809113.

The spelling of 27884249 in words is "twenty-seven million, eight hundred eighty-four thousand, two hundred forty-nine".