2166933 has 4 divisors (see below), whose sum is σ = 2889248. Its totient is φ = 1444620.

The previous prime is 2166919. The next prime is 2166937. The reversal of 2166933 is 3396612.

It is a happy number.

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 not a de Polignac number, because 2166933 - 2⁴ = 2166917 is a prime.

It is a D-number.

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 2166933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361153 + ... + 361158.

It is an arithmetic number, because the mean of its divisors is an integer number (722312).

2^2166933 is an apocalyptic number.

It is an amenable number.

2166933 is a deficient number, since it is larger than the sum of its proper divisors (722315).

2166933 is an equidigital number, since it uses as much as digits as its factorization.

2166933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722314.

The product of its digits is 5832, while the sum is 30.

The square root of 2166933 is about 1472.0506105430. The cubic root of 2166933 is about 129.4042364321.

The spelling of 2166933 in words is "two million, one hundred sixty-six thousand, nine hundred thirty-three".