9123939 has 24 divisors (see below), whose sum is σ = 15005952. Its totient is φ = 5287920.

The previous prime is 9123923. The next prime is 9123943. The reversal of 9123939 is 9393219.

9123939 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 9123939 - 2⁴ = 9123923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9123949) 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 23 ways as a sum of consecutive naturals, for example, 274 + ... + 4280.

It is an arithmetic number, because the mean of its divisors is an integer number (625248).

Almost surely, 2^9123939 is an apocalyptic number.

9123939 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

9123939 is a deficient number, since it is larger than the sum of its proper divisors (5882013).

9123939 is a wasteful number, since it uses less digits than its factorization.

9123939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047 (or 4044 counting only the distinct ones).

The product of its digits is 13122, while the sum is 36.

The square root of 9123939 is about 3020.5858703238. The cubic root of 9123939 is about 208.9588603656.

It can be divided in two parts, 912 and 3939, that added together give a triangular number (4851 = T₉₈).

The spelling of 9123939 in words is "nine million, one hundred twenty-three thousand, nine hundred thirty-nine".