9773664 has 48 divisors (see below), whose sum is σ = 26092080. Its totient is φ = 3202560.

The previous prime is 9773663. The next prime is 9773671. The reversal of 9773664 is 4663779.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×9773664³ (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9773663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5022 + ... + 6690.

It is an arithmetic number, because the mean of its divisors is an integer number (543585).

Almost surely, 2^9773664 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 9773664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13046040).

9773664 is an abundant number, since it is smaller than the sum of its proper divisors (16318416).

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

9773664 is a wasteful number, since it uses less digits than its factorization.

9773664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743 (or 1735 counting only the distinct ones).

The product of its digits is 190512, while the sum is 42.

The square root of 9773664 is about 3126.2859754028. The cubic root of 9773664 is about 213.8056289670.

The spelling of 9773664 in words is "nine million, seven hundred seventy-three thousand, six hundred sixty-four".