6809865 has 8 divisors (see below), whose sum is σ = 10895808. Its totient is φ = 3631920.

The previous prime is 6809851. The next prime is 6809893. The reversal of 6809865 is 5689086.

6809865 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 6809865 - 2⁴ = 6809849 is a prime.

It is a super-2 number, since 2×6809865² = 92748522636450, which contains 22 as substring.

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, 226981 + ... + 227010.

It is an arithmetic number, because the mean of its divisors is an integer number (1361976).

Almost surely, 2^6809865 is an apocalyptic number.

It is an amenable number.

6809865 is a deficient number, since it is larger than the sum of its proper divisors (4085943).

6809865 is a wasteful number, since it uses less digits than its factorization.

6809865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453999.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 6809865 is about 2609.5718039556. The cubic root of 6809865 is about 189.5452188671.

The spelling of 6809865 in words is "six million, eight hundred nine thousand, eight hundred sixty-five".