9009660 has 144 divisors (see below), whose sum is σ = 29762208. Its totient is φ = 2027520.

The previous prime is 9009659. The next prime is 9009673. The reversal of 9009660 is 669009.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123384 + ... + 123456.

It is an arithmetic number, because the mean of its divisors is an integer number (206682).

Almost surely, 2^9009660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9009660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14881104).

9009660 is an abundant number, since it is smaller than the sum of its proper divisors (20752548).

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

9009660 is a wasteful number, since it uses less digits than its factorization.

9009660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 9009660 is about 3001.6095682150. The cubic root of 9009660 is about 208.0827764717.

It can be divided in two parts, 9009 and 660, that added together give a palindrome (9669).

The spelling of 9009660 in words is "nine million, nine thousand, six hundred sixty".