9680640 has 72 divisors (see below), whose sum is σ = 30929808. Its totient is φ = 2580480.

The previous prime is 9680623. The next prime is 9680641. The reversal of 9680640 is 460869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9680641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2580 + ... + 5100.

Almost surely, 2^9680640 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 9680640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15464904).

9680640 is an abundant number, since it is smaller than the sum of its proper divisors (21249168).

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

9680640 is a wasteful number, since it uses less digits than its factorization.

9680640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545 (or 2531 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 9680640 is about 3111.3726874163. The cubic root of 9680640 is about 213.1251441192.

The spelling of 9680640 in words is "nine million, six hundred eighty thousand, six hundred forty".