84180323 has 4 divisors (see below), whose sum is σ = 84330408. Its totient is φ = 84030240.

The previous prime is 84180293. The next prime is 84180329. The reversal of 84180323 is 32308148.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84180323 - 2⁶ = 84180259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84180329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74198 + ... + 75323.

It is an arithmetic number, because the mean of its divisors is an integer number (21082602).

Almost surely, 2^84180323 is an apocalyptic number.

84180323 is a deficient number, since it is larger than the sum of its proper divisors (150085).

84180323 is a wasteful number, since it uses less digits than its factorization.

84180323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150084.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 84180323 is about 9174.9835422196. The cubic root of 84180323 is about 438.2650741472.

The spelling of 84180323 in words is "eighty-four million, one hundred eighty thousand, three hundred twenty-three".