9896966723 has 16 divisors (see below), whose sum is σ = 11810426880. Its totient is φ = 8108898336.

The previous prime is 9896966711. The next prime is 9896966773. The reversal of 9896966723 is 3276696989.

It is not a de Polignac number, because 9896966723 - 2¹⁸ = 9896704579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9896966723.

It is not an unprimeable number, because it can be changed into a prime (9896966773) 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 15 ways as a sum of consecutive naturals, for example, 232673 + ... + 271901.

It is an arithmetic number, because the mean of its divisors is an integer number (738151680).

Almost surely, 2^9896966723 is an apocalyptic number.

9896966723 is a deficient number, since it is larger than the sum of its proper divisors (1913460157).

9896966723 is a wasteful number, since it uses less digits than its factorization.

9896966723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40826.

The product of its digits is 52907904, while the sum is 65.

The square root of 9896966723 is about 99483.4997524715. The cubic root of 9896966723 is about 2147.0098489464.

The spelling of 9896966723 in words is "nine billion, eight hundred ninety-six million, nine hundred sixty-six thousand, seven hundred twenty-three".