12927216 has 20 divisors (see below), whose sum is σ = 33395432. Its totient is φ = 4309056.

The previous prime is 12927179. The next prime is 12927227. The reversal of 12927216 is 61272921.

It is a super-2 number, since 2×12927216² = 334225827021312, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134611 + ... + 134706.

Almost surely, 2^12927216 is an apocalyptic number.

12927216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12927216 is an abundant number, since it is smaller than the sum of its proper divisors (20468216).

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

12927216 is a wasteful number, since it uses less digits than its factorization.

12927216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269328 (or 269322 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 12927216 is about 3595.4437834571. The cubic root of 12927216 is about 234.6938279225.

The spelling of 12927216 in words is "twelve million, nine hundred twenty-seven thousand, two hundred sixteen".