12587984 has 40 divisors (see below), whose sum is σ = 25831680. Its totient is φ = 5932800.

The previous prime is 12587983. The next prime is 12587989. The reversal of 12587984 is 48978521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12587983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20027 + ... + 20645.

It is an arithmetic number, because the mean of its divisors is an integer number (645792).

Almost surely, 2^12587984 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 12587984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12915840).

12587984 is an abundant number, since it is smaller than the sum of its proper divisors (13243696).

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

12587984 is a wasteful number, since it uses less digits than its factorization.

12587984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699 (or 693 counting only the distinct ones).

The product of its digits is 161280, while the sum is 44.

The square root of 12587984 is about 3547.9549038848. The cubic root of 12587984 is about 232.6226831616.

The spelling of 12587984 in words is "twelve million, five hundred eighty-seven thousand, nine hundred eighty-four".