84556189 has 16 divisors (see below), whose sum is σ = 90027520. Its totient is φ = 79289280.

The previous prime is 84556169. The next prime is 84556201. The reversal of 84556189 is 98165548.

It is a cyclic number.

It is not a de Polignac number, because 84556189 - 2²¹ = 82459037 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 (84556139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305119 + ... + 305395.

It is an arithmetic number, because the mean of its divisors is an integer number (5626720).

Almost surely, 2^84556189 is an apocalyptic number.

It is an amenable number.

84556189 is a deficient number, since it is larger than the sum of its proper divisors (5471331).

84556189 is a wasteful number, since it uses less digits than its factorization.

84556189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580.

The product of its digits is 345600, while the sum is 46.

The square root of 84556189 is about 9195.4439262061. The cubic root of 84556189 is about 438.9163917343.

It can be divided in two parts, 845561 and 89, that added together give a triangular number (845650 = T₁₃₀₀).

The spelling of 84556189 in words is "eighty-four million, five hundred fifty-six thousand, one hundred eighty-nine".