9887424 has 56 divisors (see below), whose sum is σ = 27310080. Its totient is φ = 3151104.

The previous prime is 9887413. The next prime is 9887431. The reversal of 9887424 is 4247889.

9887424 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9887424² = 195522306711552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3297 + ... + 5535.

It is an arithmetic number, because the mean of its divisors is an integer number (487680).

Almost surely, 2^9887424 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 9887424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13655040).

9887424 is an abundant number, since it is smaller than the sum of its proper divisors (17422656).

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

9887424 is a wasteful number, since it uses less digits than its factorization.

9887424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277 (or 2267 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 9887424 is about 3144.4274518583. The cubic root of 9887424 is about 214.6319573183.

The spelling of 9887424 in words is "nine million, eight hundred eighty-seven thousand, four hundred twenty-four".