7668605 has 8 divisors (see below), whose sum is σ = 10516992. Its totient is φ = 5258448.

The previous prime is 7668601. The next prime is 7668611. The reversal of 7668605 is 5068667.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7668605 - 2² = 7668601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7668601) 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 7 ways as a sum of consecutive naturals, for example, 109517 + ... + 109586.

It is an arithmetic number, because the mean of its divisors is an integer number (1314624).

Almost surely, 2^7668605 is an apocalyptic number.

It is an amenable number.

7668605 is a deficient number, since it is larger than the sum of its proper divisors (2848387).

7668605 is a wasteful number, since it uses less digits than its factorization.

7668605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219115.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 7668605 is about 2769.2246207197. The cubic root of 7668605 is about 197.1993395685.

The spelling of 7668605 in words is "seven million, six hundred sixty-eight thousand, six hundred five".