12847280 has 20 divisors (see below), whose sum is σ = 29870112. Its totient is φ = 5138880.

The previous prime is 12847279. The next prime is 12847283. The reversal of 12847280 is 8274821.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (12847283) 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, 80216 + ... + 80375.

Almost surely, 2^12847280 is an apocalyptic number.

12847280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12847280 is an abundant number, since it is smaller than the sum of its proper divisors (17022832).

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

12847280 is a wasteful number, since it uses less digits than its factorization.

12847280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160604 (or 160598 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 12847280 is about 3584.3102544283. The cubic root of 12847280 is about 234.2090809108.

The spelling of 12847280 in words is "twelve million, eight hundred forty-seven thousand, two hundred eighty".