7668660 has 48 divisors (see below), whose sum is σ = 22409856. Its totient is φ = 1955712.

The previous prime is 7668653. The next prime is 7668667. The reversal of 7668660 is 668667.

It is an interprime number because it is at equal distance from previous prime (7668653) and next prime (7668667).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7668667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1399 + ... + 4158.

It is an arithmetic number, because the mean of its divisors is an integer number (466872).

Almost surely, 2^7668660 is an apocalyptic number.

It is an amenable number.

7668660 is an abundant number, since it is smaller than the sum of its proper divisors (14741196).

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

7668660 is a wasteful number, since it uses less digits than its factorization.

7668660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5592 (or 5590 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 7668660 is about 2769.2345512795. The cubic root of 7668660 is about 197.1998110119.

The spelling of 7668660 in words is "seven million, six hundred sixty-eight thousand, six hundred sixty".