9728959969 has 8 divisors (see below), whose sum is σ = 9997951392. Its totient is φ = 9461911200.

The previous prime is 9728959943. The next prime is 9728959979. The reversal of 9728959969 is 9699598279.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9728959969 is a prime.

It is a super-2 number, since 2×9728959969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9728959979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475507 + ... + 495544.

It is an arithmetic number, because the mean of its divisors is an integer number (1249743924).

Almost surely, 2^9728959969 is an apocalyptic number.

It is an amenable number.

9728959969 is a deficient number, since it is larger than the sum of its proper divisors (268991423).

9728959969 is a wasteful number, since it uses less digits than its factorization.

9728959969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971327.

The product of its digits is 198404640, while the sum is 73.

The square root of 9728959969 is about 98635.4904129340. The cubic root of 9728959969 is about 2134.7915354964.

The spelling of 9728959969 in words is "nine billion, seven hundred twenty-eight million, nine hundred fifty-nine thousand, nine hundred sixty-nine".