849133393 has 2 divisors, whose sum is σ = 849133394. Its totient is φ = 849133392.

The previous prime is 849133367. The next prime is 849133421. The reversal of 849133393 is 393331948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 559180609 + 289952784 = 23647^2 + 17028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-849133393 is a prime.

It is not a weakly prime, because it can be changed into another prime (849103393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424566696 + 424566697.

It is an arithmetic number, because the mean of its divisors is an integer number (424566697).

Almost surely, 2^849133393 is an apocalyptic number.

It is an amenable number.

849133393 is a deficient number, since it is larger than the sum of its proper divisors (1).

849133393 is an equidigital number, since it uses as much as digits as its factorization.

849133393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 43.

The square root of 849133393 is about 29139.8934967168. The cubic root of 849133393 is about 946.9462025091.

The spelling of 849133393 in words is "eight hundred forty-nine million, one hundred thirty-three thousand, three hundred ninety-three".