84020189 has 8 divisors (see below), whose sum is σ = 93212640. Its totient is φ = 75086800.

The previous prime is 84020159. The next prime is 84020197. The reversal of 84020189 is 98102048.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84020189 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 (84020129) 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, 64082 + ... + 65379.

It is an arithmetic number, because the mean of its divisors is an integer number (11651580).

Almost surely, 2^84020189 is an apocalyptic number.

It is an amenable number.

84020189 is a deficient number, since it is larger than the sum of its proper divisors (9192451).

84020189 is a wasteful number, since it uses less digits than its factorization.

84020189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129531.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 84020189 is about 9166.2527239870. The cubic root of 84020189 is about 437.9869977305.

The spelling of 84020189 in words is "eighty-four million, twenty thousand, one hundred eighty-nine".