84384243 has 18 divisors (see below), whose sum is σ = 129484004. Its totient is φ = 52945344.

The previous prime is 84384241. The next prime is 84384247. The reversal of 84384243 is 34248348.

It is not a de Polignac number, because 84384243 - 2¹ = 84384241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84384198 and 84384207.

It is not an unprimeable number, because it can be changed into a prime (84384241) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13621 + ... + 18822.

Almost surely, 2^84384243 is an apocalyptic number.

84384243 is a deficient number, since it is larger than the sum of its proper divisors (45099761).

84384243 is a wasteful number, since it uses less digits than its factorization.

84384243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32483 (or 32463 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 84384243 is about 9186.0896468519. The cubic root of 84384243 is about 438.6186759670.

The spelling of 84384243 in words is "eighty-four million, three hundred eighty-four thousand, two hundred forty-three".