84436 has 24 divisors (see below), whose sum is σ = 171360. Its totient is φ = 36000.

The previous prime is 84431. The next prime is 84437. The reversal of 84436 is 63448.

It is a self number, because there is not a number n which added to its sum of digits gives 84436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84431) by changing a digit.

84436 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786 + ... + 886.

It is an arithmetic number, because the mean of its divisors is an integer number (7140).

2⁸⁴⁴³⁶ is an apocalyptic number.

It is an amenable number.

84436 is an abundant number, since it is smaller than the sum of its proper divisors (86924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85680).

84436 is a wasteful number, since it uses less digits than its factorization.

84436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 133 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 84436 is about 290.5787328763. The cubic root of 84436 is about 43.8708333097.

It can be divided in two parts, 8 and 4436, that added together give a palindrome (4444).

The spelling of 84436 in words is "eighty-four thousand, four hundred thirty-six".