9661330 has 24 divisors (see below), whose sum is σ = 20230668. Its totient is φ = 3312288.

The previous prime is 9661319. The next prime is 9661339. The reversal of 9661330 is 331669.

9661330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8602489 + 1058841 = 2933^2 + 1029^2 .

It is not an unprimeable number, because it can be changed into a prime (9661339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9369 + ... + 10348.

Almost surely, 2^9661330 is an apocalyptic number.

9661330 is an abundant number, since it is smaller than the sum of its proper divisors (10569338).

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

9661330 is a wasteful number, since it uses less digits than its factorization.

9661330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19738 (or 19731 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 9661330 is about 3108.2680064628. The cubic root of 9661330 is about 212.9833426841.

Adding to 9661330 its reverse (331669), we get a palindrome (9992999).

The spelling of 9661330 in words is "nine million, six hundred sixty-one thousand, three hundred thirty".