12728076 has 12 divisors (see below), whose sum is σ = 29698872. Its totient is φ = 4242688.

The previous prime is 12728069. The next prime is 12728083. The reversal of 12728076 is 67082721.

It is an interprime number because it is at equal distance from previous prime (12728069) and next prime (12728083).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530325 + ... + 530348.

It is an arithmetic number, because the mean of its divisors is an integer number (2474906).

Almost surely, 2^12728076 is an apocalyptic number.

It is an amenable number.

12728076 is an abundant number, since it is smaller than the sum of its proper divisors (16970796).

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

12728076 is a wasteful number, since it uses less digits than its factorization.

12728076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060680 (or 1060678 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 12728076 is about 3567.6429193517. The cubic root of 12728076 is about 233.4824561496.

It can be divided in two parts, 127 and 28076, that added together give a triangular number (28203 = T₂₃₇).

The spelling of 12728076 in words is "twelve million, seven hundred twenty-eight thousand, seventy-six".