6865985 has 8 divisors (see below), whose sum is σ = 9416256. Its totient is φ = 4708080.

The previous prime is 6865967. The next prime is 6865997. The reversal of 6865985 is 5895686.

It is a happy number.

6865985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6865985 - 2⁶ = 6865921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98051 + ... + 98120.

It is an arithmetic number, because the mean of its divisors is an integer number (1177032).

Almost surely, 2^6865985 is an apocalyptic number.

It is an amenable number.

6865985 is a deficient number, since it is larger than the sum of its proper divisors (2550271).

6865985 is a wasteful number, since it uses less digits than its factorization.

6865985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196183.

The product of its digits is 518400, while the sum is 47.

The square root of 6865985 is about 2620.3024634572. The cubic root of 6865985 is about 190.0644748868.

Subtracting from 6865985 its reverse (5895686), we obtain a cube (970299 = 99³).

The spelling of 6865985 in words is "six million, eight hundred sixty-five thousand, nine hundred eighty-five".