12923838 has 96 divisors (see below), whose sum is σ = 32348160. Its totient is φ = 3706560.

The previous prime is 12923809. The next prime is 12923839. The reversal of 12923838 is 83832921.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

12923838 is a modest number, since divided by 3838 gives 1292 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12923839) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 243820 + ... + 243872.

It is an arithmetic number, because the mean of its divisors is an integer number (336960).

Almost surely, 2^12923838 is an apocalyptic number.

12923838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12923838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16174080).

12923838 is an abundant number, since it is smaller than the sum of its proper divisors (19424322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12923838 is a wasteful number, since it uses less digits than its factorization.

12923838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 131 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 12923838 is about 3594.9739915610. The cubic root of 12923838 is about 234.6733835923.

The spelling of 12923838 in words is "twelve million, nine hundred twenty-three thousand, eight hundred thirty-eight".