849787193 has 2 divisors, whose sum is σ = 849787194. Its totient is φ = 849787192.

The previous prime is 849787189. The next prime is 849787201. The reversal of 849787193 is 391787948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 594043129 + 255744064 = 24373^2 + 15992^2 .

It is a cyclic number.

It is not a de Polignac number, because 849787193 - 2² = 849787189 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (849787123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424893596 + 424893597.

It is an arithmetic number, because the mean of its divisors is an integer number (424893597).

Almost surely, 2^849787193 is an apocalyptic number.

It is an amenable number.

849787193 is a deficient number, since it is larger than the sum of its proper divisors (1).

849787193 is an equidigital number, since it uses as much as digits as its factorization.

849787193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 56.

The square root of 849787193 is about 29151.1096358269. The cubic root of 849787193 is about 947.1891775243.

The spelling of 849787193 in words is "eight hundred forty-nine million, seven hundred eighty-seven thousand, one hundred ninety-three".