9638660 has 24 divisors (see below), whose sum is σ = 21432600. Its totient is φ = 3628544.

The previous prime is 9638659. The next prime is 9638743. The reversal of 9638660 is 668369.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 287296 + 9351364 = 536^2 + 3058^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13835 + ... + 14514.

It is an arithmetic number, because the mean of its divisors is an integer number (893025).

Almost surely, 2^9638660 is an apocalyptic number.

It is an amenable number.

9638660 is an abundant number, since it is smaller than the sum of its proper divisors (11793940).

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

9638660 is a wasteful number, since it uses less digits than its factorization.

9638660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28375 (or 28373 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 9638660 is about 3104.6191392826. The cubic root of 9638660 is about 212.8166260306.

The spelling of 9638660 in words is "nine million, six hundred thirty-eight thousand, six hundred sixty".