11833921 has 16 divisors (see below), whose sum is σ = 13808448. Its totient is φ = 10105920.

The previous prime is 11833907. The next prime is 11833931. The reversal of 11833921 is 12933811.

It is not a de Polignac number, because 11833921 - 2⁷ = 11833793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11833921.

It is not an unprimeable number, because it can be changed into a prime (11833931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22366 + ... + 22888.

It is an arithmetic number, because the mean of its divisors is an integer number (863028).

Almost surely, 2^11833921 is an apocalyptic number.

11833921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11833921 is a deficient number, since it is larger than the sum of its proper divisors (1974527).

11833921 is an equidigital number, since it uses as much as digits as its factorization.

11833921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 551 counting only the distinct ones).

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

The square root of 11833921 is about 3440.0466566603. The cubic root of 11833921 is about 227.8817548863.

The spelling of 11833921 in words is "eleven million, eight hundred thirty-three thousand, nine hundred twenty-one".