7668686 has 16 divisors (see below), whose sum is σ = 11783040. Its totient is φ = 3742200.

The previous prime is 7668677. The next prime is 7668691. The reversal of 7668686 is 6868667.

It is a self number, because there is not a number n which added to its sum of digits gives 7668686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20045 + ... + 20423.

It is an arithmetic number, because the mean of its divisors is an integer number (736440).

Almost surely, 2^7668686 is an apocalyptic number.

7668686 is a deficient number, since it is larger than the sum of its proper divisors (4114354).

7668686 is a wasteful number, since it uses less digits than its factorization.

7668686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599.

The product of its digits is 580608, while the sum is 47.

The square root of 7668686 is about 2769.2392457135. The cubic root of 7668686 is about 197.2000338752.

The spelling of 7668686 in words is "seven million, six hundred sixty-eight thousand, six hundred eighty-six".