9661338 has 24 divisors (see below), whose sum is σ = 22164948. Its totient is φ = 3030912.

The previous prime is 9661319. The next prime is 9661339. The reversal of 9661338 is 8331669.

It is a happy number.

9661338 is a `hidden beast` number, since 9 + 6 + 613 + 38 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9529569 + 131769 = 3087^2 + 363^2 .

It is not an unprimeable number, because it can be changed into a prime (9661339) 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 11 ways as a sum of consecutive naturals, for example, 15481 + ... + 16092.

Almost surely, 2^9661338 is an apocalyptic number.

9661338 is an abundant number, since it is smaller than the sum of its proper divisors (12503610).

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

9661338 is a wasteful number, since it uses less digits than its factorization.

9661338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31598 (or 31595 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 9661338 is about 3108.2692933528. The cubic root of 9661338 is about 212.9834014706.

It can be divided in two parts, 9661 and 338, that added together give a palindrome (9999).

The spelling of 9661338 in words is "nine million, six hundred sixty-one thousand, three hundred thirty-eight".