9973399663 has 8 divisors (see below), whose sum is σ = 10048508288. Its totient is φ = 9898461144.

The previous prime is 9973399643. The next prime is 9973399697. The reversal of 9973399663 is 3669933799.

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-9973399663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9973399595 and 9973399604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9973399613) 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, 76420 + ... + 160582.

It is an arithmetic number, because the mean of its divisors is an integer number (1256063536).

Almost surely, 2^9973399663 is an apocalyptic number.

9973399663 is a deficient number, since it is larger than the sum of its proper divisors (75108625).

9973399663 is a wasteful number, since it uses less digits than its factorization.

9973399663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85053.

The product of its digits is 44641044, while the sum is 64.

The square root of 9973399663 is about 99866.9097499267. The cubic root of 9973399663 is about 2152.5227040861.

It can be divided in two parts, 99733 and 99663, that added together give a triangular number (199396 = T₆₃₁).

The spelling of 9973399663 in words is "nine billion, nine hundred seventy-three million, three hundred ninety-nine thousand, six hundred sixty-three".