12887328 has 24 divisors (see below), whose sum is σ = 33829488. Its totient is φ = 4295744.

The previous prime is 12887299. The next prime is 12887341. The reversal of 12887328 is 82378821.

It is a tau number, because it is divible by the number of its divisors (24).

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, 67026 + ... + 67217.

It is an arithmetic number, because the mean of its divisors is an integer number (1409562).

Almost surely, 2^12887328 is an apocalyptic number.

It is an amenable number.

12887328 is an abundant number, since it is smaller than the sum of its proper divisors (20942160).

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

12887328 is a wasteful number, since it uses less digits than its factorization.

12887328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134256 (or 134248 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 12887328 is about 3589.8924774985. The cubic root of 12887328 is about 234.4521901128.

The spelling of 12887328 in words is "twelve million, eight hundred eighty-seven thousand, three hundred twenty-eight".