12734656 has 28 divisors (see below), whose sum is σ = 27569160. Its totient is φ = 5788160.

The previous prime is 12734651. The next prime is 12734669. The reversal of 12734656 is 65643721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12734651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8341 + ... + 9748.

Almost surely, 2^12734656 is an apocalyptic number.

12734656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12734656 is an abundant number, since it is smaller than the sum of its proper divisors (14834504).

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

12734656 is a wasteful number, since it uses less digits than its factorization.

12734656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18112 (or 18102 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 12734656 is about 3568.5649776906. The cubic root of 12734656 is about 233.5226834889.

It can be divided in two parts, 1273 and 4656, that added together give a square (5929 = 77²).

The spelling of 12734656 in words is "twelve million, seven hundred thirty-four thousand, six hundred fifty-six".