84136392 has 108 divisors (see below), whose sum is σ = 243383595. Its totient is φ = 26255328.

The previous prime is 84136379. The next prime is 84136397. The reversal of 84136392 is 29363148.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

84136392 is a `hidden beast` number, since 8 + 4 + 13 + 639 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42068196 + 42068196 = 6486^2 + 6486^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6486.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (84136397) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 1790113 + ... + 1790159.

Almost surely, 2^84136392 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 84136392

84136392 is an abundant number, since it is smaller than the sum of its proper divisors (159247203).

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

84136392 is a wasteful number, since it uses less digits than its factorization.

84136392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 75 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 84136392 is about 9172.5891655519. The cubic root of 84136392 is about 438.1888220711.

The spelling of 84136392 in words is "eighty-four million, one hundred thirty-six thousand, three hundred ninety-two".