849868099 has 2 divisors, whose sum is σ = 849868100. Its totient is φ = 849868098.

The previous prime is 849868093. The next prime is 849868153. The reversal of 849868099 is 990868948.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 849868099 - 2⁵ = 849868067 is a prime.

It is not a weakly prime, because it can be changed into another prime (849868093) 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, 424934049 + 424934050.

It is an arithmetic number, because the mean of its divisors is an integer number (424934050).

Almost surely, 2^849868099 is an apocalyptic number.

849868099 is a deficient number, since it is larger than the sum of its proper divisors (1).

849868099 is an equidigital number, since it uses as much as digits as its factorization.

849868099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8957952, while the sum is 61.

The square root of 849868099 is about 29152.4973029756. The cubic root of 849868099 is about 947.2192363658.

The spelling of 849868099 in words is "eight hundred forty-nine million, eight hundred sixty-eight thousand, ninety-nine".