9996909257 has 2 divisors, whose sum is σ = 9996909258. Its totient is φ = 9996909256.

The previous prime is 9996909239. The next prime is 9996909301. The reversal of 9996909257 is 7529096999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9991201936 + 5707321 = 99956^2 + 2389^2 .

It is a cyclic number.

It is not a de Polignac number, because 9996909257 - 2⁶ = 9996909193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9996909193 and 9996909202.

It is not a weakly prime, because it can be changed into another prime (9996909457) 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, 4998454628 + 4998454629.

It is an arithmetic number, because the mean of its divisors is an integer number (4998454629).

Almost surely, 2^9996909257 is an apocalyptic number.

It is an amenable number.

9996909257 is a deficient number, since it is larger than the sum of its proper divisors (1).

9996909257 is an equidigital number, since it uses as much as digits as its factorization.

9996909257 is an odious number, because the sum of its binary digits is odd.

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

The square root of 9996909257 is about 99984.5450907289. The cubic root of 9996909257 is about 2154.2127070293.

The spelling of 9996909257 in words is "nine billion, nine hundred ninety-six million, nine hundred nine thousand, two hundred fifty-seven".