6789663 has 12 divisors (see below), whose sum is σ = 10170888. Its totient is φ = 4526280.

The previous prime is 6789637. The next prime is 6789701. The reversal of 6789663 is 3669876.

It is not a de Polignac number, because 6789663 - 2⁸ = 6789407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6789763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13728 + ... + 14213.

It is an arithmetic number, because the mean of its divisors is an integer number (847574).

Almost surely, 2^6789663 is an apocalyptic number.

6789663 is a deficient number, since it is larger than the sum of its proper divisors (3381225).

6789663 is an equidigital number, since it uses as much as digits as its factorization.

6789663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27956 (or 27944 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 6789663 is about 2605.6981789916. The cubic root of 6789663 is about 189.3575996168.

The spelling of 6789663 in words is "six million, seven hundred eighty-nine thousand, six hundred sixty-three".