9664380 has 96 divisors (see below), whose sum is σ = 32820480. Its totient is φ = 2341440.

The previous prime is 9664367. The next prime is 9664399. The reversal of 9664380 is 834669.

9664380 is a `hidden beast` number, since 9 + 6 + 643 + 8 + 0 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5127 + ... + 6753.

It is an arithmetic number, because the mean of its divisors is an integer number (341880).

Almost surely, 2^9664380 is an apocalyptic number.

9664380 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9664380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16410240).

9664380 is an abundant number, since it is smaller than the sum of its proper divisors (23156100).

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

9664380 is a wasteful number, since it uses less digits than its factorization.

9664380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 9664380 is about 3108.7585946805. The cubic root of 9664380 is about 213.0057526715.

The spelling of 9664380 in words is "nine million, six hundred sixty-four thousand, three hundred eighty".