6865189 has 4 divisors (see below), whose sum is σ = 6872256. Its totient is φ = 6858124.

The previous prime is 6865169. The next prime is 6865211. The reversal of 6865189 is 9815686.

6865189 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6865189 - 2¹¹ = 6863141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6865129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1789 + ... + 4114.

It is an arithmetic number, because the mean of its divisors is an integer number (1718064).

Almost surely, 2^6865189 is an apocalyptic number.

It is an amenable number.

6865189 is a deficient number, since it is larger than the sum of its proper divisors (7067).

6865189 is a wasteful number, since it uses less digits than its factorization.

6865189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7066.

The product of its digits is 103680, while the sum is 43.

The square root of 6865189 is about 2620.1505681926. The cubic root of 6865189 is about 190.0571296348.

The spelling of 6865189 in words is "six million, eight hundred sixty-five thousand, one hundred eighty-nine".