2196863 has 4 divisors (see below), whose sum is σ = 2229720. Its totient is φ = 2164008.

The previous prime is 2196853. The next prime is 2196869. The reversal of 2196863 is 3686912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2196863 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 9² + 6² + 8⁵ + 6⁵ + 3¹⁰ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196869) 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, 16328 + ... + 16461.

It is an arithmetic number, because the mean of its divisors is an integer number (557430).

2^2196863 is an apocalyptic number.

2196863 is a deficient number, since it is larger than the sum of its proper divisors (32857).

2196863 is an equidigital number, since it uses as much as digits as its factorization.

2196863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32856.

The product of its digits is 15552, while the sum is 35.

The square root of 2196863 is about 1482.1818376974. The cubic root of 2196863 is about 129.9972977742.

The spelling of 2196863 in words is "two million, one hundred ninety-six thousand, eight hundred sixty-three".