7668427 has 8 divisors (see below), whose sum is σ = 8306480. Its totient is φ = 7037280.

The previous prime is 7668421. The next prime is 7668433. The reversal of 7668427 is 7248667.

It is an interprime number because it is at equal distance from previous prime (7668421) and next prime (7668433).

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

It is not a de Polignac number, because 7668427 - 2⁷ = 7668299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7668427.

It is not an unprimeable number, because it can be changed into a prime (7668421) 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 7 ways as a sum of consecutive naturals, for example, 724 + ... + 3982.

It is an arithmetic number, because the mean of its divisors is an integer number (1038310).

Almost surely, 2^7668427 is an apocalyptic number.

7668427 is a deficient number, since it is larger than the sum of its proper divisors (638053).

7668427 is a wasteful number, since it uses less digits than its factorization.

7668427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453.

The product of its digits is 112896, while the sum is 40.

The square root of 7668427 is about 2769.1924815729. The cubic root of 7668427 is about 197.1978137911.

The spelling of 7668427 in words is "seven million, six hundred sixty-eight thousand, four hundred twenty-seven".