12023939 has 8 divisors (see below), whose sum is σ = 12455808. Its totient is φ = 11594880.

The previous prime is 12023933. The next prime is 12023953. The reversal of 12023939 is 93932021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12023939 - 2⁴ = 12023923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12023933) 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 7 ways as a sum of consecutive naturals, for example, 11819 + ... + 12795.

It is an arithmetic number, because the mean of its divisors is an integer number (1556976).

Almost surely, 2^12023939 is an apocalyptic number.

12023939 is a deficient number, since it is larger than the sum of its proper divisors (431869).

12023939 is an equidigital number, since it uses as much as digits as its factorization.

12023939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 12023939 is about 3467.5551906206. Note that the first 3 decimals coincide. The cubic root of 12023939 is about 229.0949880217.

The spelling of 12023939 in words is "twelve million, twenty-three thousand, nine hundred thirty-nine".