36605 has 4 divisors (see below), whose sum is σ = 43932. Its totient is φ = 29280.

The previous prime is 36599. The next prime is 36607. The reversal of 36605 is 50663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50663 = 29 ⋅1747.

It can be written as a sum of positive squares in 2 ways, for example, as 3844 + 32761 = 62^2 + 181^2 .

It is not a de Polignac number, because 36605 - 2⁶ = 36541 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 36605.

It is not an unprimeable number, because it can be changed into a prime (36607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3656 + ... + 3665.

It is an arithmetic number, because the mean of its divisors is an integer number (10983).

2³⁶⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

36605 is a deficient number, since it is larger than the sum of its proper divisors (7327).

36605 is an equidigital number, since it uses as much as digits as its factorization.

36605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7326.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 36605 is about 191.3243319602. The cubic root of 36605 is about 33.2032149594.

Subtracting from 36605 its sum of digits (20), we obtain a triangular number (36585 = T₂₇₀).

The spelling of 36605 in words is "thirty-six thousand, six hundred five".