12891324 has 12 divisors (see below), whose sum is σ = 30079784. Its totient is φ = 4297104.

The previous prime is 12891259. The next prime is 12891353. The reversal of 12891324 is 42319821.

12891324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 12891291 and 12891300.

It is a congruent number.

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, 537127 + ... + 537150.

Almost surely, 2^12891324 is an apocalyptic number.

It is an amenable number.

12891324 is an abundant number, since it is smaller than the sum of its proper divisors (17188460).

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

12891324 is a wasteful number, since it uses less digits than its factorization.

12891324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074284 (or 1074282 counting only the distinct ones).

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

The square root of 12891324 is about 3590.4489969919. The cubic root of 12891324 is about 234.4764199645.

The spelling of 12891324 in words is "twelve million, eight hundred ninety-one thousand, three hundred twenty-four".