12023906 has 16 divisors (see below), whose sum is σ = 18573408. Its totient is φ = 5834400.

The previous prime is 12023881. The next prime is 12023909. The reversal of 12023906 is 60932021.

It is not an unprimeable number, because it can be changed into a prime (12023909) 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, 26921 + ... + 27363.

It is an arithmetic number, because the mean of its divisors is an integer number (1160838).

Almost surely, 2^12023906 is an apocalyptic number.

12023906 is a deficient number, since it is larger than the sum of its proper divisors (6549502).

12023906 is a wasteful number, since it uses less digits than its factorization.

12023906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 12023906 is about 3467.5504322216. The cubic root of 12023906 is about 229.0947784358.

Adding to 12023906 its reverse (60932021), we get a palindrome (72955927).

The spelling of 12023906 in words is "twelve million, twenty-three thousand, nine hundred six".