9973663799 has 8 divisors (see below), whose sum is σ = 10881243648. Its totient is φ = 9066231160.

The previous prime is 9973663781. The next prime is 9973663807.

9973663799 is nontrivially palindromic in base 10.

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-9973663799 is a prime.

It is a super-2 number, since 2×9973663799² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9973663729) 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, 143144 + ... + 201090.

It is an arithmetic number, because the mean of its divisors is an integer number (1360155456).

Almost surely, 2^9973663799 is an apocalyptic number.

9973663799 is a deficient number, since it is larger than the sum of its proper divisors (907579849).

9973663799 is a wasteful number, since it uses less digits than its factorization.

9973663799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73605.

The product of its digits is 104162436, while the sum is 68.

The square root of 9973663799 is about 99868.2321812097. The cubic root of 9973663799 is about 2152.5417064235.

The spelling of 9973663799 in words is "nine billion, nine hundred seventy-three million, six hundred sixty-three thousand, seven hundred ninety-nine".