12728476 has 24 divisors (see below), whose sum is σ = 23998464. Its totient is φ = 5889840.

The previous prime is 12728447. The next prime is 12728479. The reversal of 12728476 is 67482721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12728479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621 + ... + 5083.

It is an arithmetic number, because the mean of its divisors is an integer number (999936).

Almost surely, 2^12728476 is an apocalyptic number.

It is an amenable number.

12728476 is a deficient number, since it is larger than the sum of its proper divisors (11269988).

12728476 is a wasteful number, since it uses less digits than its factorization.

12728476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521 (or 4519 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 12728476 is about 3567.6989783332. The cubic root of 12728476 is about 233.4849019763.

The spelling of 12728476 in words is "twelve million, seven hundred twenty-eight thousand, four hundred seventy-six".