84364812 has 144 divisors (see below), whose sum is σ = 264176640. Its totient is φ = 22150656.

The previous prime is 84364793. The next prime is 84364837. The reversal of 84364812 is 21846348.

84364812 is a `hidden beast` number, since 8 + 4 + 3 + 648 + 1 + 2 = 666.

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, 201139 + ... + 201557.

It is an arithmetic number, because the mean of its divisors is an integer number (1834560).

Almost surely, 2^84364812 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 84364812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132088320).

84364812 is an abundant number, since it is smaller than the sum of its proper divisors (179811828).

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

84364812 is a wasteful number, since it uses less digits than its factorization.

84364812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 495 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 84364812 is about 9185.0319542177. The cubic root of 84364812 is about 438.5850067516.

The spelling of 84364812 in words is "eighty-four million, three hundred sixty-four thousand, eight hundred twelve".