36845 has 4 divisors (see below), whose sum is σ = 44220. Its totient is φ = 29472.

The previous prime is 36833. The next prime is 36847. The reversal of 36845 is 54863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54863 = 83 ⋅661.

It can be written as a sum of positive squares in 2 ways, for example, as 24964 + 11881 = 158^2 + 109^2 .

It is a cyclic number.

It is not a de Polignac number, because 36845 - 2⁶ = 36781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36847) 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, 3680 + ... + 3689.

It is an arithmetic number, because the mean of its divisors is an integer number (11055).

2³⁶⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

36845 is a deficient number, since it is larger than the sum of its proper divisors (7375).

36845 is an equidigital number, since it uses as much as digits as its factorization.

36845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7374.

The product of its digits is 2880, while the sum is 26.

The square root of 36845 is about 191.9505144562. The cubic root of 36845 is about 33.2756223632.

The spelling of 36845 in words is "thirty-six thousand, eight hundred forty-five".