12782680 has 16 divisors (see below), whose sum is σ = 28761120. Its totient is φ = 5113056.

The previous prime is 12782659. The next prime is 12782683. The reversal of 12782680 is 8628721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12782683) 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, 159744 + ... + 159823.

It is an arithmetic number, because the mean of its divisors is an integer number (1797570).

Almost surely, 2^12782680 is an apocalyptic number.

12782680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12782680 is an abundant number, since it is smaller than the sum of its proper divisors (15978440).

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

12782680 is a wasteful number, since it uses less digits than its factorization.

12782680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319578 (or 319574 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 12782680 is about 3575.2874010351. The cubic root of 12782680 is about 233.8158631259.

The spelling of 12782680 in words is "twelve million, seven hundred eighty-two thousand, six hundred eighty".