9681552 has 80 divisors (see below), whose sum is σ = 28262080. Its totient is φ = 3172608.

The previous prime is 9681547. The next prime is 9681559. The reversal of 9681552 is 2551869.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (9681559) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31383 + ... + 31689.

It is an arithmetic number, because the mean of its divisors is an integer number (353276).

Almost surely, 2^9681552 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 9681552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14131040).

9681552 is an abundant number, since it is smaller than the sum of its proper divisors (18580528).

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

9681552 is a wasteful number, since it uses less digits than its factorization.

9681552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 385 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 9681552 is about 3111.5192430708. The cubic root of 9681552 is about 213.1318366529.

The spelling of 9681552 in words is "nine million, six hundred eighty-one thousand, five hundred fifty-two".