999044999 has 2 divisors, whose sum is σ = 999045000. Its totient is φ = 999044998.

The previous prime is 999044989. The next prime is 999045017. The reversal of 999044999 is 999440999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999044999 - 2²⁸ = 730609543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999044939) 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, 499522499 + 499522500.

It is an arithmetic number, because the mean of its divisors is an integer number (499522500).

Almost surely, 2^999044999 is an apocalyptic number.

999044999 is a deficient number, since it is larger than the sum of its proper divisors (1).

999044999 is an equidigital number, since it uses as much as digits as its factorization.

999044999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8503056, while the sum is 62.

The square root of 999044999 is about 31607.6731032197. The cubic root of 999044999 is about 999.6815649432.

The spelling of 999044999 in words is "nine hundred ninety-nine million, forty-four thousand, nine hundred ninety-nine".