866112893 has 2 divisors, whose sum is σ = 866112894. Its totient is φ = 866112892.

The previous prime is 866112881. The next prime is 866112911. The reversal of 866112893 is 398211668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 816930724 + 49182169 = 28582^2 + 7013^2 .

It is a cyclic number.

It is not a de Polignac number, because 866112893 - 2⁶ = 866112829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (866112833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433056446 + 433056447.

It is an arithmetic number, because the mean of its divisors is an integer number (433056447).

Almost surely, 2^866112893 is an apocalyptic number.

It is an amenable number.

866112893 is a deficient number, since it is larger than the sum of its proper divisors (1).

866112893 is an equidigital number, since it uses as much as digits as its factorization.

866112893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 44.

The square root of 866112893 is about 29429.7960067684. The cubic root of 866112893 is about 953.2163900300.

The spelling of 866112893 in words is "eight hundred sixty-six million, one hundred twelve thousand, eight hundred ninety-three".