11800843 has 4 divisors (see below), whose sum is σ = 12421960. Its totient is φ = 11179728.

The previous prime is 11800837. The next prime is 11800847. The reversal of 11800843 is 34800811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34800811 = 3779 ⋅9209.

It is a cyclic number.

It is not a de Polignac number, because 11800843 - 2²¹ = 9703691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11800847) 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, 310530 + ... + 310567.

It is an arithmetic number, because the mean of its divisors is an integer number (3105490).

Almost surely, 2^11800843 is an apocalyptic number.

11800843 is a deficient number, since it is larger than the sum of its proper divisors (621117).

11800843 is an equidigital number, since it uses as much as digits as its factorization.

11800843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621116.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 11800843 is about 3435.2355086660. The cubic root of 11800843 is about 227.6692328528.

The spelling of 11800843 in words is "eleven million, eight hundred thousand, eight hundred forty-three".