999796529 has 2 divisors, whose sum is σ = 999796530. Its totient is φ = 999796528.

The previous prime is 999796513. The next prime is 999796543. The reversal of 999796529 is 925697999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 997106929 + 2689600 = 31577^2 + 1640^2 .

It is an emirp because it is prime and its reverse (925697999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999796529 - 2⁴ = 999796513 is a prime.

It is not a weakly prime, because it can be changed into another prime (999796829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499898264 + 499898265.

It is an arithmetic number, because the mean of its divisors is an integer number (499898265).

Almost surely, 2^999796529 is an apocalyptic number.

It is an amenable number.

999796529 is a deficient number, since it is larger than the sum of its proper divisors (1).

999796529 is an equidigital number, since it uses as much as digits as its factorization.

999796529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24800580, while the sum is 65.

The square root of 999796529 is about 31619.5592790285. The cubic root of 999796529 is about 999.9321717328.

The spelling of 999796529 in words is "nine hundred ninety-nine million, seven hundred ninety-six thousand, five hundred twenty-nine".