13987584 has 108 divisors (see below), whose sum is σ = 43524936. Its totient is φ = 4294656.

The previous prime is 13987579. The next prime is 13987613. The reversal of 13987584 is 48578931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29719 + ... + 30185.

Almost surely, 2^13987584 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 13987584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21762468).

13987584 is an abundant number, since it is smaller than the sum of its proper divisors (29537352).

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

13987584 is a wasteful number, since it uses less digits than its factorization.

13987584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 485 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 13987584 is about 3739.9978609620. The cubic root of 13987584 is about 240.9429569487.

The spelling of 13987584 in words is "thirteen million, nine hundred eighty-seven thousand, five hundred eighty-four".