6688893 has 16 divisors (see below), whose sum is σ = 9446400. Its totient is φ = 4198320.

The previous prime is 6688859. The next prime is 6688907. The reversal of 6688893 is 3988866.

It is not a de Polignac number, because 6688893 - 2¹⁰ = 6687869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6688813) 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 15 ways as a sum of consecutive naturals, for example, 13378 + ... + 13868.

It is an arithmetic number, because the mean of its divisors is an integer number (590400).

Almost surely, 2^6688893 is an apocalyptic number.

It is an amenable number.

6688893 is a deficient number, since it is larger than the sum of its proper divisors (2757507).

6688893 is a wasteful number, since it uses less digits than its factorization.

6688893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752.

The product of its digits is 497664, while the sum is 48.

The square root of 6688893 is about 2586.2894269590. The cubic root of 6688893 is about 188.4161315698.

The spelling of 6688893 in words is "six million, six hundred eighty-eight thousand, eight hundred ninety-three".