12709272 has 32 divisors (see below), whose sum is σ = 31967280. Its totient is φ = 4210560.

The previous prime is 12709267. The next prime is 12709313. The reversal of 12709272 is 27290721.

It is a happy number.

12709272 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 2622 + ... + 5682.

Almost surely, 2^12709272 is an apocalyptic number.

12709272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12709272 is an abundant number, since it is smaller than the sum of its proper divisors (19258008).

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

12709272 is a wasteful number, since it uses less digits than its factorization.

12709272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243 (or 3239 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 12709272 is about 3565.0065918593. The cubic root of 12709272 is about 233.3674199635.

Adding to 12709272 its reverse (27290721), we get a palindrome (39999993).

The spelling of 12709272 in words is "twelve million, seven hundred nine thousand, two hundred seventy-two".