7789668 has 24 divisors (see below), whose sum is σ = 18223968. Its totient is φ = 2589696.

The previous prime is 7789657. The next prime is 7789669. The reversal of 7789668 is 8669877.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7789668.

It is not an unprimeable number, because it can be changed into a prime (7789669) 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, 6180 + ... + 7332.

It is an arithmetic number, because the mean of its divisors is an integer number (759332).

Almost surely, 2^7789668 is an apocalyptic number.

It is an amenable number.

7789668 is an abundant number, since it is smaller than the sum of its proper divisors (10434300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7789668 is a wasteful number, since it uses less digits than its factorization.

7789668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723 (or 1721 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The square root of 7789668 is about 2790.9976710847. The cubic root of 7789668 is about 198.2316440003.

The spelling of 7789668 in words is "seven million, seven hundred eighty-nine thousand, six hundred sixty-eight".