12727296 has 66 divisors (see below), whose sum is σ = 36776402. Its totient is φ = 4239360.

The previous prime is 12727291. The next prime is 12727301. The reversal of 12727296 is 69272721.

It is an interprime number because it is at equal distance from previous prime (12727291) and next prime (12727301).

It can be written as a sum of positive squares in only one way, i.e., 10653696 + 2073600 = 3264^2 + 1440^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 12727296.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12727291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8526 + ... + 9906.

Almost surely, 2^12727296 is an apocalyptic number.

12727296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12727296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18388201).

12727296 is an abundant number, since it is smaller than the sum of its proper divisors (24049106).

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

12727296 is a wasteful number, since it uses less digits than its factorization.

12727296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407 (or 1386 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 12727296 is about 3567.5336018039. The cubic root of 12727296 is about 233.4776866401.

The spelling of 12727296 in words is "twelve million, seven hundred twenty-seven thousand, two hundred ninety-six".