84523 has 2 divisors, whose sum is σ = 84524. Its totient is φ = 84522.

The previous prime is 84521. The next prime is 84533. The reversal of 84523 is 32548.

It is a weak prime.

84523 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 84523 - 2¹ = 84521 is a prime.

Together with 84521, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 84494 and 84503.

It is not a weakly prime, because it can be changed into another prime (84521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42261 + 42262.

It is an arithmetic number, because the mean of its divisors is an integer number (42262).

2⁸⁴⁵²³ is an apocalyptic number.

84523 is a deficient number, since it is larger than the sum of its proper divisors (1).

84523 is an equidigital number, since it uses as much as digits as its factorization.

84523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 84523 is about 290.7283955860. The cubic root of 84523 is about 43.8858958121.

It can be divided in two parts, 845 and 23, that added together give a palindrome (868).

The spelling of 84523 in words is "eighty-four thousand, five hundred twenty-three".