84168189 has 12 divisors (see below), whose sum is σ = 138944416. Its totient is φ = 48096072.

The previous prime is 84168143. The next prime is 84168199. The reversal of 84168189 is 98186148.

It is not a de Polignac number, because 84168189 - 2⁷ = 84168061 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 (84168199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 667939 + ... + 668064.

Almost surely, 2^84168189 is an apocalyptic number.

It is an amenable number.

84168189 is a deficient number, since it is larger than the sum of its proper divisors (54776227).

84168189 is a wasteful number, since it uses less digits than its factorization.

84168189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336016 (or 1336013 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 84168189 is about 9174.3222637969. The cubic root of 84168189 is about 438.2440155286.

The spelling of 84168189 in words is "eighty-four million, one hundred sixty-eight thousand, one hundred eighty-nine".