12913284 has 12 divisors (see below), whose sum is σ = 30131024. Its totient is φ = 4304424.

The previous prime is 12913283. The next prime is 12913289. The reversal of 12913284 is 48231921.

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

It is not an unprimeable number, because it can be changed into a prime (12913283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538042 + ... + 538065.

Almost surely, 2^12913284 is an apocalyptic number.

It is an amenable number.

12913284 is an abundant number, since it is smaller than the sum of its proper divisors (17217740).

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

12913284 is a wasteful number, since it uses less digits than its factorization.

12913284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076114 (or 1076112 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 12913284 is about 3593.5058090951. The cubic root of 12913284 is about 234.6094857164.

The spelling of 12913284 in words is "twelve million, nine hundred thirteen thousand, two hundred eighty-four".