9605640 has 128 divisors (see below), whose sum is σ = 33177600. Its totient is φ = 2200320.

The previous prime is 9605639. The next prime is 9605647. The reversal of 9605640 is 465069.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 9605598 and 9605607.

It is not an unprimeable number, because it can be changed into a prime (9605647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24889 + ... + 25271.

It is an arithmetic number, because the mean of its divisors is an integer number (259200).

Almost surely, 2^9605640 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 9605640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16588800).

9605640 is an abundant number, since it is smaller than the sum of its proper divisors (23571960).

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

9605640 is a wasteful number, since it uses less digits than its factorization.

9605640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 9605640 is about 3099.2966944131. The cubic root of 9605640 is about 212.5733264824.

The spelling of 9605640 in words is "nine million, six hundred five thousand, six hundred forty".