2196943 has 4 divisors (see below), whose sum is σ = 2510800. Its totient is φ = 1883088.

The previous prime is 2196941. The next prime is 2196959. The reversal of 2196943 is 3496912.

2196943 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.

It is a cyclic number.

It is not a de Polignac number, because 2196943 - 2¹ = 2196941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2196899 and 2196908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196941) 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, 156918 + ... + 156931.

It is an arithmetic number, because the mean of its divisors is an integer number (627700).

2^2196943 is an apocalyptic number.

2196943 is a deficient number, since it is larger than the sum of its proper divisors (313857).

2196943 is an equidigital number, since it uses as much as digits as its factorization.

2196943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313856.

The product of its digits is 11664, while the sum is 34.

The square root of 2196943 is about 1482.2088246937. The cubic root of 2196943 is about 129.9988757299.

The spelling of 2196943 in words is "two million, one hundred ninety-six thousand, nine hundred forty-three".