12704028 has 24 divisors (see below), whose sum is σ = 29811600. Its totient is φ = 4210560.

The previous prime is 12704023. The next prime is 12704089. The reversal of 12704028 is 82040721.

It is a super-2 number, since 2×12704028² = 322784654849568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12703989 and 12704007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12704023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753 + ... + 5096.

It is an arithmetic number, because the mean of its divisors is an integer number (1242150).

Almost surely, 2^12704028 is an apocalyptic number.

It is an amenable number.

12704028 is an abundant number, since it is smaller than the sum of its proper divisors (17107572).

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

12704028 is a wasteful number, since it uses less digits than its factorization.

12704028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6037 (or 6035 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 12704028 is about 3564.2710334653. The cubic root of 12704028 is about 233.3353188040.

Adding to 12704028 its reverse (82040721), we get a palindrome (94744749).

The spelling of 12704028 in words is "twelve million, seven hundred four thousand, twenty-eight".