849380089 has 2 divisors, whose sum is σ = 849380090. Its totient is φ = 849380088.

The previous prime is 849380023. The next prime is 849380111. The reversal of 849380089 is 980083948.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461605225 + 387774864 = 21485^2 + 19692^2 .

It is a cyclic number.

It is not a de Polignac number, because 849380089 - 2¹⁹ = 848855801 is a prime.

It is not a weakly prime, because it can be changed into another prime (849380789) 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, 424690044 + 424690045.

It is an arithmetic number, because the mean of its divisors is an integer number (424690045).

Almost surely, 2^849380089 is an apocalyptic number.

It is an amenable number.

849380089 is a deficient number, since it is larger than the sum of its proper divisors (1).

849380089 is an equidigital number, since it uses as much as digits as its factorization.

849380089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 849380089 is about 29144.1261491917. The cubic root of 849380089 is about 947.0378980435.

The spelling of 849380089 in words is "eight hundred forty-nine million, three hundred eighty thousand, eighty-nine".