849066893 has 2 divisors, whose sum is σ = 849066894. Its totient is φ = 849066892.

The previous prime is 849066871. The next prime is 849066917. The reversal of 849066893 is 398660948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 848149129 + 917764 = 29123^2 + 958^2 .

It is a cyclic number.

It is not a de Polignac number, because 849066893 - 2¹⁰ = 849065869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (849066793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424533446 + 424533447.

It is an arithmetic number, because the mean of its divisors is an integer number (424533447).

Almost surely, 2^849066893 is an apocalyptic number.

It is an amenable number.

849066893 is a deficient number, since it is larger than the sum of its proper divisors (1).

849066893 is an equidigital number, since it uses as much as digits as its factorization.

849066893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The square root of 849066893 is about 29138.7524269657. The cubic root of 849066893 is about 946.9214817891.

The spelling of 849066893 in words is "eight hundred forty-nine million, sixty-six thousand, eight hundred ninety-three".