7668907 has 4 divisors (see below), whose sum is σ = 7682776. Its totient is φ = 7655040.

The previous prime is 7668901. The next prime is 7668911. The reversal of 7668907 is 7098667.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7668907 - 2¹¹ = 7666859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7668901) 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 3 ways as a sum of consecutive naturals, for example, 6069 + ... + 7222.

It is an arithmetic number, because the mean of its divisors is an integer number (1920694).

Almost surely, 2^7668907 is an apocalyptic number.

7668907 is a deficient number, since it is larger than the sum of its proper divisors (13869).

7668907 is a wasteful number, since it uses less digits than its factorization.

7668907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13868.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 7668907 is about 2769.2791480817. The cubic root of 7668907 is about 197.2019281932.

The spelling of 7668907 in words is "seven million, six hundred sixty-eight thousand, nine hundred seven".