27870893 has 2 divisors, whose sum is σ = 27870894. Its totient is φ = 27870892.

The previous prime is 27870883. The next prime is 27870919. The reversal of 27870893 is 39807872.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21409129 + 6461764 = 4627^2 + 2542^2 .

It is a cyclic number.

It is not a de Polignac number, because 27870893 - 2⁴ = 27870877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27870863) 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, 13935446 + 13935447.

It is an arithmetic number, because the mean of its divisors is an integer number (13935447).

Almost surely, 2^27870893 is an apocalyptic number.

It is an amenable number.

27870893 is a deficient number, since it is larger than the sum of its proper divisors (1).

27870893 is an equidigital number, since it uses as much as digits as its factorization.

27870893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 27870893 is about 5279.2890619855. The cubic root of 27870893 is about 303.1914578911.

The spelling of 27870893 in words is "twenty-seven million, eight hundred seventy thousand, eight hundred ninety-three".