9681732 has 18 divisors (see below), whose sum is σ = 24473358. Its totient is φ = 3227232.

The previous prime is 9681709. The next prime is 9681739. The reversal of 9681732 is 2371869.

9681732 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 can be written as a sum of positive squares in only one way, i.e., 7322436 + 2359296 = 2706^2 + 1536^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 268937 = 9681732 / (9 + 6 + 8 + 1 + 7 + 3 + 2).

It is not an unprimeable number, because it can be changed into a prime (9681739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134433 + ... + 134504.

It is an arithmetic number, because the mean of its divisors is an integer number (1359631).

Almost surely, 2^9681732 is an apocalyptic number.

It is an amenable number.

9681732 is an abundant number, since it is smaller than the sum of its proper divisors (14791626).

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

9681732 is a wasteful number, since it uses less digits than its factorization.

9681732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268947 (or 268942 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 9681732 is about 3111.5481677133. The cubic root of 9681732 is about 213.1331574980.

The spelling of 9681732 in words is "nine million, six hundred eighty-one thousand, seven hundred thirty-two".