6699768 has 32 divisors (see below), whose sum is σ = 17735760. Its totient is φ = 2101760.

The previous prime is 6699767. The next prime is 6699779. The reversal of 6699768 is 8679966.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 6699768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6699767) 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, 7803 + ... + 8618.

Almost surely, 2^6699768 is an apocalyptic number.

6699768 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6699768 is an abundant number, since it is smaller than the sum of its proper divisors (11035992).

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

6699768 is a wasteful number, since it uses less digits than its factorization.

6699768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16447 (or 16443 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 6699768 is about 2588.3910060113. The cubic root of 6699768 is about 188.5181871206.

The spelling of 6699768 in words is "six million, six hundred ninety-nine thousand, seven hundred sixty-eight".