7716320 has 48 divisors (see below), whose sum is σ = 18869760. Its totient is φ = 2978304.

The previous prime is 7716281. The next prime is 7716329. The reversal of 7716320 is 236177.

It is a self number, because there is not a number n which added to its sum of digits gives 7716320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7716329) 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, 3809 + ... + 5471.

It is an arithmetic number, because the mean of its divisors is an integer number (393120).

Almost surely, 2^7716320 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 7716320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9434880).

7716320 is an abundant number, since it is smaller than the sum of its proper divisors (11153440).

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

7716320 is a wasteful number, since it uses less digits than its factorization.

7716320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707 (or 1699 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 7716320 is about 2777.8264884618. The cubic root of 7716320 is about 197.6074936921.

The spelling of 7716320 in words is "seven million, seven hundred sixteen thousand, three hundred twenty".