6800865 has 16 divisors (see below), whose sum is σ = 10967616. Its totient is φ = 3598400.

The previous prime is 6800861. The next prime is 6800869. The reversal of 6800865 is 5680086.

It is an interprime number because it is at equal distance from previous prime (6800861) and next prime (6800869).

It is not a de Polignac number, because 6800865 - 2² = 6800861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6800861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235 + ... + 3695.

It is an arithmetic number, because the mean of its divisors is an integer number (685476).

Almost surely, 2^6800865 is an apocalyptic number.

It is an amenable number.

6800865 is a deficient number, since it is larger than the sum of its proper divisors (4166751).

6800865 is a wasteful number, since it uses less digits than its factorization.

6800865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 6800865 is about 2607.8468129858. The cubic root of 6800865 is about 189.4616803027.

The spelling of 6800865 in words is "six million, eight hundred thousand, eight hundred sixty-five".