999530773 has 2 divisors, whose sum is σ = 999530774. Its totient is φ = 999530772.

The previous prime is 999530771. The next prime is 999530783. The reversal of 999530773 is 377035999.

999530773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 993951729 + 5579044 = 31527^2 + 2362^2 .

It is a cyclic number.

It is not a de Polignac number, because 999530773 - 2¹ = 999530771 is a prime.

Together with 999530771, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 999530773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999530771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499765386 + 499765387.

It is an arithmetic number, because the mean of its divisors is an integer number (499765387).

Almost surely, 2^999530773 is an apocalyptic number.

It is an amenable number.

999530773 is a deficient number, since it is larger than the sum of its proper divisors (1).

999530773 is an equidigital number, since it uses as much as digits as its factorization.

999530773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1607445, while the sum is 52.

The square root of 999530773 is about 31615.3566008672. The cubic root of 999530773 is about 999.8435665298.

The spelling of 999530773 in words is "nine hundred ninety-nine million, five hundred thirty thousand, seven hundred seventy-three".