27868853 has 2 divisors, whose sum is σ = 27868854. Its totient is φ = 27868852.

The previous prime is 27868843. The next prime is 27868861. The reversal of 27868853 is 35886872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19562929 + 8305924 = 4423^2 + 2882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27868853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27868798 and 27868807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27868843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13934426 + 13934427.

It is an arithmetic number, because the mean of its divisors is an integer number (13934427).

Almost surely, 2^27868853 is an apocalyptic number.

It is an amenable number.

27868853 is a deficient number, since it is larger than the sum of its proper divisors (1).

27868853 is an equidigital number, since it uses as much as digits as its factorization.

27868853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 47.

The square root of 27868853 is about 5279.0958506168. The cubic root of 27868853 is about 303.1840603806.

The spelling of 27868853 in words is "twenty-seven million, eight hundred sixty-eight thousand, eight hundred fifty-three".