7656668 has 12 divisors (see below), whose sum is σ = 13726272. Its totient is φ = 3734880.

The previous prime is 7656661. The next prime is 7656673. The reversal of 7656668 is 8666567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7656661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23180 + ... + 23507.

It is an arithmetic number, because the mean of its divisors is an integer number (1143856).

Almost surely, 2^7656668 is an apocalyptic number.

It is an amenable number.

7656668 is a deficient number, since it is larger than the sum of its proper divisors (6069604).

7656668 is a wasteful number, since it uses less digits than its factorization.

7656668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46732 (or 46730 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 7656668 is about 2767.0684848771. The cubic root of 7656668 is about 197.0969658437.

The spelling of 7656668 in words is "seven million, six hundred fifty-six thousand, six hundred sixty-eight".