11733921 has 24 divisors (see below), whose sum is σ = 17594304. Its totient is φ = 7529760.

The previous prime is 11733919. The next prime is 11733929. The reversal of 11733921 is 12933711.

It is not a de Polignac number, because 11733921 - 2¹ = 11733919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11733929) 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 23 ways as a sum of consecutive naturals, for example, 55506 + ... + 55716.

It is an arithmetic number, because the mean of its divisors is an integer number (733096).

Almost surely, 2^11733921 is an apocalyptic number.

It is an amenable number.

11733921 is a deficient number, since it is larger than the sum of its proper divisors (5860383).

11733921 is a wasteful number, since it uses less digits than its factorization.

11733921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 418 counting only the distinct ones).

The product of its digits is 1134, while the sum is 27.

The square root of 11733921 is about 3425.4811340890. The cubic root of 11733921 is about 227.2380497443.

The spelling of 11733921 in words is "eleven million, seven hundred thirty-three thousand, nine hundred twenty-one".