9859923 has 12 divisors (see below), whose sum is σ = 14384448. Its totient is φ = 6507600.

The previous prime is 9859909. The next prime is 9859931. The reversal of 9859923 is 3299589.

9859923 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 9859923 - 2⁶ = 9859859 is a prime.

It is a super-3 number, since 3×9859923³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (9859963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4515 + ... + 6332.

It is an arithmetic number, because the mean of its divisors is an integer number (1198704).

Almost surely, 2^9859923 is an apocalyptic number.

9859923 is a deficient number, since it is larger than the sum of its proper divisors (4524525).

9859923 is a wasteful number, since it uses less digits than its factorization.

9859923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10954 (or 10951 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 9859923 is about 3140.0514326998. The cubic root of 9859923 is about 214.4327792363.

The spelling of 9859923 in words is "nine million, eight hundred fifty-nine thousand, nine hundred twenty-three".