9923423 has 4 divisors (see below), whose sum is σ = 10265640. Its totient is φ = 9581208.

The previous prime is 9923413. The next prime is 9923429. The reversal of 9923423 is 3243299.

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 9923423 - 2⁸ = 9923167 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 9923423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9923429) 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, 171065 + ... + 171122.

It is an arithmetic number, because the mean of its divisors is an integer number (2566410).

Almost surely, 2^9923423 is an apocalyptic number.

9923423 is a deficient number, since it is larger than the sum of its proper divisors (342217).

9923423 is a wasteful number, since it uses less digits than its factorization.

9923423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342216.

The product of its digits is 11664, while the sum is 32.

The square root of 9923423 is about 3150.1465045296. The cubic root of 9923423 is about 214.8921254404.

The spelling of 9923423 in words is "nine million, nine hundred twenty-three thousand, four hundred twenty-three".