84605 has 4 divisors (see below), whose sum is σ = 101532. Its totient is φ = 67680.

The previous prime is 84589. The next prime is 84629. The reversal of 84605 is 50648.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45796 + 38809 = 214^2 + 197^2 .

It is not a de Polignac number, because 84605 - 2⁴ = 84589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8456 + ... + 8465.

It is an arithmetic number, because the mean of its divisors is an integer number (25383).

2⁸⁴⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

84605 is a deficient number, since it is larger than the sum of its proper divisors (16927).

84605 is a wasteful number, since it uses less digits than its factorization.

84605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16926.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 84605 is about 290.8693864950. The cubic root of 84605 is about 43.9000831944.

The spelling of 84605 in words is "eighty-four thousand, six hundred five".