84118860 has 144 divisors (see below), whose sum is σ = 294944832. Its totient is φ = 19008000.

The previous prime is 84118819. The next prime is 84118877. The reversal of 84118860 is 6881148.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126930 + ... + 127590.

It is an arithmetic number, because the mean of its divisors is an integer number (2048228).

Almost surely, 2^84118860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84118860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147472416).

84118860 is an abundant number, since it is smaller than the sum of its proper divisors (210825972).

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

84118860 is a wasteful number, since it uses less digits than its factorization.

84118860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 84118860 is about 9171.6334423046. The cubic root of 84118860 is about 438.1583839538.

It can be divided in two parts, 8411 and 8860, that added together give a palindrome (17271).

The spelling of 84118860 in words is "eighty-four million, one hundred eighteen thousand, eight hundred sixty".