9657780 has 48 divisors (see below), whose sum is σ = 29502144. Its totient is φ = 2341120.

The previous prime is 9657779. The next prime is 9657787. The reversal of 9657780 is 877569.

9657780 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9657787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6657 + ... + 7976.

It is an arithmetic number, because the mean of its divisors is an integer number (614628).

Almost surely, 2^9657780 is an apocalyptic number.

It is an amenable number.

9657780 is an abundant number, since it is smaller than the sum of its proper divisors (19844364).

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

9657780 is a wasteful number, since it uses less digits than its factorization.

9657780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14656 (or 14654 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 9657780 is about 3107.6968964170. The cubic root of 9657780 is about 212.9572529879.

The spelling of 9657780 in words is "nine million, six hundred fifty-seven thousand, seven hundred eighty".