9661340 has 24 divisors (see below), whose sum is σ = 21850080. Its totient is φ = 3567168.

The previous prime is 9661339. The next prime is 9661349. The reversal of 9661340 is 431669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9661349) 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 7 ways as a sum of consecutive naturals, for example, 18320 + ... + 18839.

It is an arithmetic number, because the mean of its divisors is an integer number (910420).

Almost surely, 2^9661340 is an apocalyptic number.

It is an amenable number.

9661340 is an abundant number, since it is smaller than the sum of its proper divisors (12188740).

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

9661340 is a wasteful number, since it uses less digits than its factorization.

9661340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37181 (or 37179 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 9661340 is about 3108.2696150752. The cubic root of 9661340 is about 212.9834161672.

It can be divided in two parts, 9661 and 340, that added together give a palindrome (10001).

The spelling of 9661340 in words is "nine million, six hundred sixty-one thousand, three hundred forty".