9996635997 has 6 divisors (see below), whose sum is σ = 14439585342. Its totient is φ = 6664423992.

The previous prime is 9996635983. The next prime is 9996636011. The reversal of 9996635997 is 7995366999.

It is an interprime number because it is at equal distance from previous prime (9996635983) and next prime (9996636011).

It can be written as a sum of positive squares in only one way, i.e., 5606115876 + 4390520121 = 74874^2 + 66261^2 .

It is not a de Polignac number, because 9996635997 - 2⁸ = 9996635741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9996635917) 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 in 5 ways as a sum of consecutive naturals, for example, 555368658 + ... + 555368675.

It is an arithmetic number, because the mean of its divisors is an integer number (2406597557).

Almost surely, 2^9996635997 is an apocalyptic number.

It is an amenable number.

9996635997 is a deficient number, since it is larger than the sum of its proper divisors (4442949345).

9996635997 is a wasteful number, since it uses less digits than its factorization.

9996635997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110737339 (or 1110737336 counting only the distinct ones).

The product of its digits is 223205220, while the sum is 72.

The square root of 9996635997 is about 99983.1785701975. The cubic root of 9996635997 is about 2154.1930787785.

The spelling of 9996635997 in words is "nine billion, nine hundred ninety-six million, six hundred thirty-five thousand, nine hundred ninety-seven".