12783732 has 72 divisors (see below), whose sum is σ = 34052256. Its totient is φ = 3710016.

The previous prime is 12783731. The next prime is 12783737. The reversal of 12783732 is 23738721.

It is a junction number, because it is equal to n+sod(n) for n = 12783693 and 12783702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12783731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56203 + ... + 56429.

It is an arithmetic number, because the mean of its divisors is an integer number (472948).

Almost surely, 2^12783732 is an apocalyptic number.

12783732 is a gapful number since it is divisible by the number (12) 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 12783732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17026128).

12783732 is an abundant number, since it is smaller than the sum of its proper divisors (21268524).

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

12783732 is a wasteful number, since it uses less digits than its factorization.

12783732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 264 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 12783732 is about 3575.4345190480. The cubic root of 12783732 is about 233.8222772096.

The spelling of 12783732 in words is "twelve million, seven hundred eighty-three thousand, seven hundred thirty-two".