12747312 has 30 divisors (see below), whose sum is σ = 35675172. Its totient is φ = 4249056.

The previous prime is 12747299. The next prime is 12747323. The reversal of 12747312 is 21374721.

It is a happy number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 44118 + ... + 44405.

Almost surely, 2^12747312 is an apocalyptic number.

12747312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12747312 is an abundant number, since it is smaller than the sum of its proper divisors (22927860).

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

12747312 is a wasteful number, since it uses less digits than its factorization.

12747312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88537 (or 88528 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 12747312 is about 3570.3377991445. The cubic root of 12747312 is about 233.6000179834.

The spelling of 12747312 in words is "twelve million, seven hundred forty-seven thousand, three hundred twelve".