9669980 has 12 divisors (see below), whose sum is σ = 20307000. Its totient is φ = 3867984.

The previous prime is 9669953. The next prime is 9669997. The reversal of 9669980 is 899669.

It is a happy number.

9669980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241730 + ... + 241769.

It is an arithmetic number, because the mean of its divisors is an integer number (1692250).

Almost surely, 2^9669980 is an apocalyptic number.

It is an amenable number.

9669980 is an abundant number, since it is smaller than the sum of its proper divisors (10637020).

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

9669980 is a wasteful number, since it uses less digits than its factorization.

9669980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483508 (or 483506 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 9669980 is about 3109.6591453084. The cubic root of 9669980 is about 213.0468866050.

The spelling of 9669980 in words is "nine million, six hundred sixty-nine thousand, nine hundred eighty".