6891189 has 8 divisors (see below), whose sum is σ = 9317952. Its totient is φ = 4529280.

The previous prime is 6891179. The next prime is 6891193. The reversal of 6891189 is 9811986.

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

It is not a de Polignac number, because 6891189 - 2⁴ = 6891173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6891189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6891119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15964 + ... + 16389.

It is an arithmetic number, because the mean of its divisors is an integer number (1164744).

Almost surely, 2^6891189 is an apocalyptic number.

It is an amenable number.

6891189 is a deficient number, since it is larger than the sum of its proper divisors (2426763).

6891189 is a wasteful number, since it uses less digits than its factorization.

6891189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32427.

The product of its digits is 31104, while the sum is 42.

The square root of 6891189 is about 2625.1074263733. The cubic root of 6891189 is about 190.2967569436.

The spelling of 6891189 in words is "six million, eight hundred ninety-one thousand, one hundred eighty-nine".