12049923 has 16 divisors (see below), whose sum is σ = 17085600. Its totient is φ = 7527936.

The previous prime is 12049913. The next prime is 12049927. The reversal of 12049923 is 32994021.

It is not a de Polignac number, because 12049923 - 2¹⁰ = 12048899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12049927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17461 + ... + 18137.

It is an arithmetic number, because the mean of its divisors is an integer number (1067850).

Almost surely, 2^12049923 is an apocalyptic number.

12049923 is a deficient number, since it is larger than the sum of its proper divisors (5035677).

12049923 is a wasteful number, since it uses less digits than its factorization.

12049923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 12049923 is about 3471.2999006136. The cubic root of 12049923 is about 229.2598957462.

The spelling of 12049923 in words is "twelve million, forty-nine thousand, nine hundred twenty-three".