84559 has 2 divisors, whose sum is σ = 84560. Its totient is φ = 84558.

The previous prime is 84551. The next prime is 84589. The reversal of 84559 is 95548.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84559 - 2³ = 84551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42279 + 42280.

It is an arithmetic number, because the mean of its divisors is an integer number (42280).

2⁸⁴⁵⁵⁹ is an apocalyptic number.

84559 is a deficient number, since it is larger than the sum of its proper divisors (1).

84559 is an equidigital number, since it uses as much as digits as its factorization.

84559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 31.

The square root of 84559 is about 290.7903024518. The cubic root of 84559 is about 43.8921255484.

It can be divided in two parts, 8455 and 9, that added together give a square (8464 = 92²).

The spelling of 84559 in words is "eighty-four thousand, five hundred fifty-nine".