9938032423 has 4 divisors (see below), whose sum is σ = 10841489928. Its totient is φ = 9034574920.

The previous prime is 9938032369. The next prime is 9938032451. The reversal of 9938032423 is 3242308399.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9938032423 - 2⁹ = 9938031911 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 9938032423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9938032493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451728736 + ... + 451728757.

It is an arithmetic number, because the mean of its divisors is an integer number (2710372482).

Almost surely, 2^9938032423 is an apocalyptic number.

9938032423 is a deficient number, since it is larger than the sum of its proper divisors (903457505).

9938032423 is a wasteful number, since it uses less digits than its factorization.

9938032423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903457504.

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 9938032423 is about 99689.6806244257. The cubic root of 9938032423 is about 2149.9752961286.

The spelling of 9938032423 in words is "nine billion, nine hundred thirty-eight million, thirty-two thousand, four hundred twenty-three".