7716 has 12 divisors (see below), whose sum is σ = 18032. Its totient is φ = 2568.

The previous prime is 7703. The next prime is 7717. The reversal of 7716 is 6177.

7716 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 15.

It is a nialpdrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 7692 and 7701.

It is not an unprimeable number, because it can be changed into a prime (7717) by changing a digit.

7716 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310 + ... + 333.

2⁷⁷¹⁶ is an apocalyptic number.

It is an amenable number.

7716 is an abundant number, since it is smaller than the sum of its proper divisors (10316).

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 (9016).

7716 is a wasteful number, since it uses less digits than its factorization.

7716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 648 counting only the distinct ones).

The product of its digits is 294, while the sum is 21.

The square root of 7716 is about 87.8407650240. The cubic root of 7716 is about 19.7604762024.

It can be divided in two parts, 771 and 6, that added together give a palindrome (777).

The spelling of 7716 in words is "seven thousand, seven hundred sixteen".