868639027 has 2 divisors, whose sum is σ = 868639028. Its totient is φ = 868639026.

The previous prime is 868638989. The next prime is 868639033. The reversal of 868639027 is 720936868.

868639027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 868639027 - 2²⁷ = 734421299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (868339027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434319513 + 434319514.

It is an arithmetic number, because the mean of its divisors is an integer number (434319514).

Almost surely, 2^868639027 is an apocalyptic number.

868639027 is a deficient number, since it is larger than the sum of its proper divisors (1).

868639027 is an equidigital number, since it uses as much as digits as its factorization.

868639027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 868639027 is about 29472.6827248556. The cubic root of 868639027 is about 954.1422181752.

The spelling of 868639027 in words is "eight hundred sixty-eight million, six hundred thirty-nine thousand, twenty-seven".