6689893 has 8 divisors (see below), whose sum is σ = 7892480. Its totient is φ = 5549040.

The previous prime is 6689873. The next prime is 6689909. The reversal of 6689893 is 3989866.

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

It is not a de Polignac number, because 6689893 - 2²¹ = 4592741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6689873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15198 + ... + 15631.

It is an arithmetic number, because the mean of its divisors is an integer number (986560).

Almost surely, 2^6689893 is an apocalyptic number.

It is an amenable number.

6689893 is a deficient number, since it is larger than the sum of its proper divisors (1202587).

6689893 is a wasteful number, since it uses less digits than its factorization.

6689893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30867.

The product of its digits is 559872, while the sum is 49.

The square root of 6689893 is about 2586.4827468978. The cubic root of 6689893 is about 188.4255206044.

The spelling of 6689893 in words is "six million, six hundred eighty-nine thousand, eight hundred ninety-three".