11921433 has 4 divisors (see below), whose sum is σ = 15895248. Its totient is φ = 7947620.

The previous prime is 11921423. The next prime is 11921443. The reversal of 11921433 is 33412911.

11921433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is an interprime number because it is at equal distance from previous prime (11921423) and next prime (11921443).

It is a cyclic number.

It is not a de Polignac number, because 11921433 - 2⁵ = 11921401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11921423) 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, 1986903 + ... + 1986908.

It is an arithmetic number, because the mean of its divisors is an integer number (3973812).

Almost surely, 2^11921433 is an apocalyptic number.

It is an amenable number.

11921433 is a deficient number, since it is larger than the sum of its proper divisors (3973815).

11921433 is an equidigital number, since it uses as much as digits as its factorization.

11921433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3973814.

The product of its digits is 648, while the sum is 24.

The square root of 11921433 is about 3452.7428227425. The cubic root of 11921433 is about 228.4421053970.

The spelling of 11921433 in words is "eleven million, nine hundred twenty-one thousand, four hundred thirty-three".