27874213 has 2 divisors, whose sum is σ = 27874214. Its totient is φ = 27874212.

The previous prime is 27874207. The next prime is 27874241. The reversal of 27874213 is 31247872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14493249 + 13380964 = 3807^2 + 3658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27874213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27874013) 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, 13937106 + 13937107.

It is an arithmetic number, because the mean of its divisors is an integer number (13937107).

Almost surely, 2^27874213 is an apocalyptic number.

It is an amenable number.

27874213 is a deficient number, since it is larger than the sum of its proper divisors (1).

27874213 is an equidigital number, since it uses as much as digits as its factorization.

27874213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 34.

The square root of 27874213 is about 5279.6034888995. The cubic root of 27874213 is about 303.2034962050.

The spelling of 27874213 in words is "twenty-seven million, eight hundred seventy-four thousand, two hundred thirteen".