84234243 has 4 divisors (see below), whose sum is σ = 112312328. Its totient is φ = 56156160.

The previous prime is 84234233. The next prime is 84234281. The reversal of 84234243 is 34243248.

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

It is not a de Polignac number, because 84234243 - 2¹⁸ = 83972099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84234243.

It is not an unprimeable number, because it can be changed into a prime (84234233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14039038 + ... + 14039043.

It is an arithmetic number, because the mean of its divisors is an integer number (28078082).

Almost surely, 2^84234243 is an apocalyptic number.

84234243 is a deficient number, since it is larger than the sum of its proper divisors (28078085).

84234243 is a wasteful number, since it uses less digits than its factorization.

84234243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28078084.

The product of its digits is 18432, while the sum is 30.

The square root of 84234243 is about 9177.9214967224. The cubic root of 84234243 is about 438.3586281126.

The spelling of 84234243 in words is "eighty-four million, two hundred thirty-four thousand, two hundred forty-three".