27484213 has 2 divisors, whose sum is σ = 27484214. Its totient is φ = 27484212.

The previous prime is 27484207. The next prime is 27484231. The reversal of 27484213 is 31248472.

Together with next prime (27484231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17288964 + 10195249 = 4158^2 + 3193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27484213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27484253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13742106 + 13742107.

It is an arithmetic number, because the mean of its divisors is an integer number (13742107).

Almost surely, 2^27484213 is an apocalyptic number.

It is an amenable number.

27484213 is a deficient number, since it is larger than the sum of its proper divisors (1).

27484213 is an equidigital number, since it uses as much as digits as its factorization.

27484213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 31.

The square root of 27484213 is about 5242.5387933710. The cubic root of 27484213 is about 301.7827663103.

The spelling of 27484213 in words is "twenty-seven million, four hundred eighty-four thousand, two hundred thirteen".