999998339 has 2 divisors, whose sum is σ = 999998340. Its totient is φ = 999998338.

The previous prime is 999998309. The next prime is 999998369. The reversal of 999998339 is 933899999.

It is a balanced prime because it is at equal distance from previous prime (999998309) and next prime (999998369).

It is an emirp because it is prime and its reverse (933899999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999998339 - 2¹⁶ = 999932803 is a prime.

It is not a weakly prime, because it can be changed into another prime (999998309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999169 + 499999170.

It is an arithmetic number, because the mean of its divisors is an integer number (499999170).

Almost surely, 2^999998339 is an apocalyptic number.

999998339 is a deficient number, since it is larger than the sum of its proper divisors (1).

999998339 is an equidigital number, since it uses as much as digits as its factorization.

999998339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38263752, while the sum is 68.

The square root of 999998339 is about 31622.7503389569. The cubic root of 999998339 is about 999.9994463330. Note that the first 3 decimals are identical.

The spelling of 999998339 in words is "nine hundred ninety-nine million, nine hundred ninety-eight thousand, three hundred thirty-nine".