9774 has 16 divisors (see below), whose sum is σ = 21840. Its totient is φ = 3240.

The previous prime is 9769. The next prime is 9781. The reversal of 9774 is 4779.

9774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 13.

It is a nialpdrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 9774.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37 + ... + 144.

It is an arithmetic number, because the mean of its divisors is an integer number (1365).

2⁹⁷⁷⁴ is an apocalyptic number.

9774 is an abundant number, since it is smaller than the sum of its proper divisors (12066).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10920).

9774 is a wasteful number, since it uses less digits than its factorization.

9774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 186 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 9774 is about 98.8635423197. The cubic root of 9774 is about 21.3808079016.

Adding to 9774 its sum of digits (27), we get a square (9801 = 99²).

It can be divided in two parts, 97 and 74, that added together give a palindrome (171).

The spelling of 9774 in words is "nine thousand, seven hundred seventy-four".