7688660 has 24 divisors (see below), whose sum is σ = 18453120. Its totient is φ = 2636064.

The previous prime is 7688627. The next prime is 7688663. The reversal of 7688660 is 668867.

7688660 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7688663) 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, 27320 + ... + 27599.

It is an arithmetic number, because the mean of its divisors is an integer number (768880).

Almost surely, 2^7688660 is an apocalyptic number.

7688660 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7688660 is an abundant number, since it is smaller than the sum of its proper divisors (10764460).

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

7688660 is a wasteful number, since it uses less digits than its factorization.

7688660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54935 (or 54933 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 7688660 is about 2772.8433060669. The cubic root of 7688660 is about 197.3710957174.

The spelling of 7688660 in words is "seven million, six hundred eighty-eight thousand, six hundred sixty".