1836845 has 4 divisors (see below), whose sum is σ = 2204220. Its totient is φ = 1469472.

The previous prime is 1836839. The next prime is 1836853. The reversal of 1836845 is 5486381.

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 206116 + 1630729 = 454^2 + 1277^2 .

It is a cyclic number.

It is not a de Polignac number, because 1836845 - 2¹⁴ = 1820461 is a prime.

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, 183680 + ... + 183689.

It is an arithmetic number, because the mean of its divisors is an integer number (551055).

2^1836845 is an apocalyptic number.

It is an amenable number.

1836845 is a deficient number, since it is larger than the sum of its proper divisors (367375).

1836845 is an equidigital number, since it uses as much as digits as its factorization.

1836845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367374.

The product of its digits is 23040, while the sum is 35.

The square root of 1836845 is about 1355.3025492487. The cubic root of 1836845 is about 122.4684355715.

It can be divided in two parts, 18 and 36845, that added together give a palindrome (36863).

The spelling of 1836845 in words is "one million, eight hundred thirty-six thousand, eight hundred forty-five".