9724123 has 4 divisors (see below), whose sum is σ = 9795240. Its totient is φ = 9653008.

The previous prime is 9724103. The next prime is 9724129. The reversal of 9724123 is 3214279.

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 9724123 - 2¹³ = 9715931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9724091 and 9724100.

It is not an unprimeable number, because it can be changed into a prime (9724129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35353 + ... + 35626.

It is an arithmetic number, because the mean of its divisors is an integer number (2448810).

Almost surely, 2^9724123 is an apocalyptic number.

9724123 is a deficient number, since it is larger than the sum of its proper divisors (71117).

9724123 is a wasteful number, since it uses less digits than its factorization.

9724123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71116.

The product of its digits is 3024, while the sum is 28.

The square root of 9724123 is about 3118.3526099529. The cubic root of 9724123 is about 213.4437690473.

The spelling of 9724123 in words is "nine million, seven hundred twenty-four thousand, one hundred twenty-three".