84234971 has 4 divisors (see below), whose sum is σ = 84342792. Its totient is φ = 84127152.

The previous prime is 84234959. The next prime is 84234991. The reversal of 84234971 is 17943248.

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

It is not a de Polignac number, because 84234971 - 2⁶ = 84234907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84234991) 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, 52730 + ... + 54303.

It is an arithmetic number, because the mean of its divisors is an integer number (21085698).

Almost surely, 2^84234971 is an apocalyptic number.

84234971 is a deficient number, since it is larger than the sum of its proper divisors (107821).

84234971 is a wasteful number, since it uses less digits than its factorization.

84234971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107820.

The product of its digits is 48384, while the sum is 38.

The square root of 84234971 is about 9177.9611570326. The cubic root of 84234971 is about 438.3598909568.

The spelling of 84234971 in words is "eighty-four million, two hundred thirty-four thousand, nine hundred seventy-one".