9923640003 has 24 divisors (see below), whose sum is σ = 14586452816. Its totient is φ = 6499569600.

The previous prime is 9923639983. The next prime is 9923640029. The reversal of 9923640003 is 3000463299.

It is a happy number.

9923640003 is a `hidden beast` number, since 9 + 9 + 2 + 3 + 640 + 0 + 0 + 3 = 666.

9923640003 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9923640003 - 2¹⁰ = 9923638979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9923640003.

It is not an unprimeable number, because it can be changed into a prime (9923640043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 471168 + ... + 491778.

Almost surely, 2^9923640003 is an apocalyptic number.

9923640003 is a deficient number, since it is larger than the sum of its proper divisors (4662812813).

9923640003 is a wasteful number, since it uses less digits than its factorization.

9923640003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21555 (or 21552 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 9923640003 is about 99617.4683627324. The cubic root of 9923640003 is about 2148.9369183185.

The spelling of 9923640003 in words is "nine billion, nine hundred twenty-three million, six hundred forty thousand, three".