9776 has 20 divisors (see below), whose sum is σ = 20832. Its totient is φ = 4416.

The previous prime is 9769. The next prime is 9781. The reversal of 9776 is 6779.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185 + ... + 231.

2⁹⁷⁷⁶ 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 9776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10416).

9776 is an abundant number, since it is smaller than the sum of its proper divisors (11056).

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

9776 is a wasteful number, since it uses less digits than its factorization.

9776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 62 counting only the distinct ones).

The product of its digits is 2646, while the sum is 29.

The square root of 9776 is about 98.8736567545. The cubic root of 9776 is about 21.3822661480.

The spelling of 9776 in words is "nine thousand, seven hundred seventy-six".