12743936 has 36 divisors (see below), whose sum is σ = 25852512. Its totient is φ = 6268416.

The previous prime is 12743933. The next prime is 12743977. The reversal of 12743936 is 63934721.

It is a junction number, because it is equal to n+sod(n) for n = 12743896 and 12743905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12743933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16781 + ... + 17523.

Almost surely, 2^12743936 is an apocalyptic number.

12743936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12743936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12926256).

12743936 is an abundant number, since it is smaller than the sum of its proper divisors (13108576).

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

12743936 is an frugal number, since it uses more digits than its factorization.

12743936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 812 counting only the distinct ones).

The product of its digits is 27216, while the sum is 35.

The square root of 12743936 is about 3569.8649834413. The cubic root of 12743936 is about 233.5793939414.

The spelling of 12743936 in words is "twelve million, seven hundred forty-three thousand, nine hundred thirty-six".