6864865 has 8 divisors (see below), whose sum is σ = 9414720. Its totient is φ = 4707312.

The previous prime is 6864853. The next prime is 6864881. The reversal of 6864865 is 5684686.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6864865 is a prime.

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, 98035 + ... + 98104.

It is an arithmetic number, because the mean of its divisors is an integer number (1176840).

Almost surely, 2^6864865 is an apocalyptic number.

It is an amenable number.

6864865 is a deficient number, since it is larger than the sum of its proper divisors (2549855).

6864865 is a wasteful number, since it uses less digits than its factorization.

6864865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196151.

The product of its digits is 276480, while the sum is 43.

The square root of 6864865 is about 2620.0887389552. The cubic root of 6864865 is about 190.0541396963.

The spelling of 6864865 in words is "six million, eight hundred sixty-four thousand, eight hundred sixty-five".