11912833 has 4 divisors (see below), whose sum is σ = 11922948. Its totient is φ = 11902720.

The previous prime is 11912821. The next prime is 11912839. The reversal of 11912833 is 33821911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 33821911 = 331 ⋅102181.

It can be written as a sum of positive squares in 2 ways, for example, as 6310144 + 5602689 = 2512^2 + 2367^2 .

It is a cyclic number.

It is not a de Polignac number, because 11912833 - 2¹⁷ = 11781761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11912839) 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, 3016 + ... + 5737.

It is an arithmetic number, because the mean of its divisors is an integer number (2980737).

Almost surely, 2^11912833 is an apocalyptic number.

It is an amenable number.

11912833 is a deficient number, since it is larger than the sum of its proper divisors (10115).

11912833 is an equidigital number, since it uses as much as digits as its factorization.

11912833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10114.

The product of its digits is 1296, while the sum is 28.

The square root of 11912833 is about 3451.4972113563. The cubic root of 11912833 is about 228.3871602488.

The spelling of 11912833 in words is "eleven million, nine hundred twelve thousand, eight hundred thirty-three".