6875865 has 24 divisors (see below), whose sum is σ = 12175488. Its totient is φ = 3588000.

The previous prime is 6875861. The next prime is 6875867. The reversal of 6875865 is 5685786.

6875865 is a `hidden beast` number, since 68 + 7 + 586 + 5 = 666.

It is not a de Polignac number, because 6875865 - 2² = 6875861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6875865.

It is not an unprimeable number, because it can be changed into a prime (6875861) 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 23 ways as a sum of consecutive naturals, for example, 490 + ... + 3740.

It is an arithmetic number, because the mean of its divisors is an integer number (507312).

Almost surely, 2^6875865 is an apocalyptic number.

It is an amenable number.

6875865 is a deficient number, since it is larger than the sum of its proper divisors (5299623).

6875865 is a wasteful number, since it uses less digits than its factorization.

6875865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309 (or 3306 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 6875865 is about 2622.1870642652. The cubic root of 6875865 is about 190.1555973797.

The spelling of 6875865 in words is "six million, eight hundred seventy-five thousand, eight hundred sixty-five".