12747284 has 24 divisors (see below), whose sum is σ = 24446016. Its totient is φ = 5768000.

The previous prime is 12747281. The next prime is 12747289. The reversal of 12747284 is 48274721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12747281) 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 7 ways as a sum of consecutive naturals, for example, 11849 + ... + 12879.

It is an arithmetic number, because the mean of its divisors is an integer number (1018584).

Almost surely, 2^12747284 is an apocalyptic number.

It is an amenable number.

12747284 is a deficient number, since it is larger than the sum of its proper divisors (11698732).

12747284 is a wasteful number, since it uses less digits than its factorization.

12747284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327 (or 1325 counting only the distinct ones).

The product of its digits is 25088, while the sum is 35.

The square root of 12747284 is about 3570.3338779448. Note that the first 3 decimals coincide. The cubic root of 12747284 is about 233.5998469459.

It can be divided in two parts, 12747 and 284, that added together give a palindrome (13031).

The spelling of 12747284 in words is "twelve million, seven hundred forty-seven thousand, two hundred eighty-four".