1836361 has 4 divisors (see below), whose sum is σ = 1846800. Its totient is φ = 1825924.

The previous prime is 1836319. The next prime is 1836379. The reversal of 1836361 is 1636381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1636381 = 23 ⋅71147.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1836361 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1836361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1836301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4951 + ... + 5308.

It is an arithmetic number, because the mean of its divisors is an integer number (461700).

2^1836361 is an apocalyptic number.

It is an amenable number.

1836361 is a deficient number, since it is larger than the sum of its proper divisors (10439).

1836361 is a wasteful number, since it uses less digits than its factorization.

1836361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10438.

The product of its digits is 2592, while the sum is 28.

The square root of 1836361 is about 1355.1239795679. The cubic root of 1836361 is about 122.4576780081.

It can be divided in two parts, 1836 and 361, that added together give a cube (2197 = 13³).

The spelling of 1836361 in words is "one million, eight hundred thirty-six thousand, three hundred sixty-one".