9729648 has 30 divisors (see below), whose sum is σ = 27229904. Its totient is φ = 3243168.

The previous prime is 9729647. The next prime is 9729649. The reversal of 9729648 is 8469279.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9729647) and next prime (9729649).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9729641) 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 5 ways as a sum of consecutive naturals, for example, 33640 + ... + 33927.

Almost surely, 2^9729648 is an apocalyptic number.

It is an amenable number.

9729648 is an abundant number, since it is smaller than the sum of its proper divisors (17500256).

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

9729648 is a wasteful number, since it uses less digits than its factorization.

9729648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67581 (or 67572 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 9729648 is about 3119.2383685765. The cubic root of 9729648 is about 213.4841858386.

It can be divided in two parts, 97296 and 48, that added together give a square (97344 = 312²).

The spelling of 9729648 in words is "nine million, seven hundred twenty-nine thousand, six hundred forty-eight".