999849299 has 2 divisors, whose sum is σ = 999849300. Its totient is φ = 999849298.

The previous prime is 999849289. The next prime is 999849311. The reversal of 999849299 is 992948999.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999849299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (999849239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499924649 + 499924650.

It is an arithmetic number, because the mean of its divisors is an integer number (499924650).

Almost surely, 2^999849299 is an apocalyptic number.

999849299 is a deficient number, since it is larger than the sum of its proper divisors (1).

999849299 is an equidigital number, since it uses as much as digits as its factorization.

999849299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34012224, while the sum is 68.

The square root of 999849299 is about 31620.3937198764. The cubic root of 999849299 is about 999.9497638097.

The spelling of 999849299 in words is "nine hundred ninety-nine million, eight hundred forty-nine thousand, two hundred ninety-nine".