7664668 has 12 divisors (see below), whose sum is σ = 14632632. Its totient is φ = 3483920.

The previous prime is 7664653. The next prime is 7664669. The reversal of 7664668 is 8664667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7664669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87055 + ... + 87142.

It is an arithmetic number, because the mean of its divisors is an integer number (1219386).

Almost surely, 2^7664668 is an apocalyptic number.

It is an amenable number.

7664668 is a deficient number, since it is larger than the sum of its proper divisors (6967964).

7664668 is a wasteful number, since it uses less digits than its factorization.

7664668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174212 (or 174210 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 7664668 is about 2768.5136806597. The cubic root of 7664668 is about 197.1655869413.

Subtracting 7664668 from its reverse (8664667), we obtain a palindrome (999999).

The spelling of 7664668 in words is "seven million, six hundred sixty-four thousand, six hundred sixty-eight".