6886985 has 8 divisors (see below), whose sum is σ = 9445056. Its totient is φ = 4722480.

The previous prime is 6886981. The next prime is 6887059. The reversal of 6886985 is 5896886.

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

It is not a de Polignac number, because 6886985 - 2² = 6886981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6886981) 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, 98351 + ... + 98420.

It is an arithmetic number, because the mean of its divisors is an integer number (1180632).

Almost surely, 2^6886985 is an apocalyptic number.

It is an amenable number.

6886985 is a deficient number, since it is larger than the sum of its proper divisors (2558071).

6886985 is a wasteful number, since it uses less digits than its factorization.

6886985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196783.

The product of its digits is 829440, while the sum is 50.

The square root of 6886985 is about 2624.3065750785. The cubic root of 6886985 is about 190.2580519488.

Subtracting from 6886985 its reverse (5896886), we obtain a palindrome (990099).

The spelling of 6886985 in words is "six million, eight hundred eighty-six thousand, nine hundred eighty-five".