12721484 has 24 divisors (see below), whose sum is σ = 23677920. Its totient is φ = 5967104.

The previous prime is 12721477. The next prime is 12721519. The reversal of 12721484 is 48412721.

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, 3572 + ... + 6180.

It is an arithmetic number, because the mean of its divisors is an integer number (986580).

Almost surely, 2^12721484 is an apocalyptic number.

It is an amenable number.

12721484 is a deficient number, since it is larger than the sum of its proper divisors (10956436).

12721484 is a wasteful number, since it uses less digits than its factorization.

12721484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689 (or 2687 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 12721484 is about 3566.7189404269. The cubic root of 12721484 is about 233.4421415428.

The spelling of 12721484 in words is "twelve million, seven hundred twenty-one thousand, four hundred eighty-four".