6909189 has 8 divisors (see below), whose sum is σ = 10528320. Its totient is φ = 3948096.

The previous prime is 6909173. The next prime is 6909247. The reversal of 6909189 is 9819096.

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

It is not a de Polignac number, because 6909189 - 2⁴ = 6909173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6909189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6909109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164484 + ... + 164525.

It is an arithmetic number, because the mean of its divisors is an integer number (1316040).

Almost surely, 2^6909189 is an apocalyptic number.

It is an amenable number.

6909189 is a deficient number, since it is larger than the sum of its proper divisors (3619131).

6909189 is a wasteful number, since it uses less digits than its factorization.

6909189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329019.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 6909189 is about 2628.5336216225. The cubic root of 6909189 is about 190.4622999087.

The spelling of 6909189 in words is "six million, nine hundred nine thousand, one hundred eighty-nine".