84404589 has 8 divisors (see below), whose sum is σ = 113654112. Its totient is φ = 55712400.

The previous prime is 84404563. The next prime is 84404611. The reversal of 84404589 is 98540448.

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

It is not a de Polignac number, because 84404589 - 2⁵ = 84404557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84404589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84404189) 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, 138979 + ... + 139584.

It is an arithmetic number, because the mean of its divisors is an integer number (14206764).

Almost surely, 2^84404589 is an apocalyptic number.

It is an amenable number.

84404589 is a deficient number, since it is larger than the sum of its proper divisors (29249523).

84404589 is a wasteful number, since it uses less digits than its factorization.

84404589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278667.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 84404589 is about 9187.1970154123. The cubic root of 84404589 is about 438.6539251167.

The spelling of 84404589 in words is "eighty-four million, four hundred four thousand, five hundred eighty-nine".