999332849 has 2 divisors, whose sum is σ = 999332850. Its totient is φ = 999332848.

The previous prime is 999332821. The next prime is 999332899. The reversal of 999332849 is 948233999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 711182224 + 288150625 = 26668^2 + 16975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999332849 is a prime.

It is a super-2 number, since 2×999332849² = 1997332286180913602, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 999332794 and 999332803.

It is not a weakly prime, because it can be changed into another prime (999332899) 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, 499666424 + 499666425.

It is an arithmetic number, because the mean of its divisors is an integer number (499666425).

Almost surely, 2^999332849 is an apocalyptic number.

It is an amenable number.

999332849 is a deficient number, since it is larger than the sum of its proper divisors (1).

999332849 is an equidigital number, since it uses as much as digits as its factorization.

999332849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3779136, while the sum is 56.

The square root of 999332849 is about 31612.2262582059. The cubic root of 999332849 is about 999.7775668605. Note that the first 3 decimals are identical.

The spelling of 999332849 in words is "nine hundred ninety-nine million, three hundred thirty-two thousand, eight hundred forty-nine".