12897984 has 112 divisors (see below), whose sum is σ = 38624256. Its totient is φ = 3763200.

The previous prime is 12897971. The next prime is 12898007. The reversal of 12897984 is 48979821.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65374 + ... + 65570.

Almost surely, 2^12897984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12897984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19312128).

12897984 is an abundant number, since it is smaller than the sum of its proper divisors (25726272).

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

12897984 is a wasteful number, since it uses less digits than its factorization.

12897984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 244 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 12897984 is about 3591.3763378404. The cubic root of 12897984 is about 234.5167919260.

The spelling of 12897984 in words is "twelve million, eight hundred ninety-seven thousand, nine hundred eighty-four".