9678 has 8 divisors (see below), whose sum is σ = 19368. Its totient is φ = 3224.

The previous prime is 9677. The next prime is 9679. The reversal of 9678 is 8769.

It is a happy number.

9678 is nontrivially palindromic in base 5.

It is an interprime number because it is at equal distance from previous prime (9677) and next prime (9679).

It is a sphenic number, since it is the product of 3 distinct primes.

9678 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801 + ... + 812.

It is an arithmetic number, because the mean of its divisors is an integer number (2421).

2⁹⁶⁷⁸ is an apocalyptic number.

9678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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 (9684).

9678 is a wasteful number, since it uses less digits than its factorization.

9678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618.

The product of its digits is 3024, while the sum is 30.

The square root of 9678 is about 98.3768265396. The cubic root of 9678 is about 21.3105768626.

Subtracting from 9678 its reverse (8769), we obtain a palindrome (909).

The spelling of 9678 in words is "nine thousand, six hundred seventy-eight".