2216719 has 4 divisors (see below), whose sum is σ = 2237544. Its totient is φ = 2195896.

The previous prime is 2216701. The next prime is 2216729. The reversal of 2216719 is 9176122.

It is a happy number.

2216719 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 a de Polignac number, because none of the positive numbers 2^k-2216719 is a prime.

It is a super-2 number, since 2×2216719² = 9827686249922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216729) 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, 10252 + ... + 10465.

It is an arithmetic number, because the mean of its divisors is an integer number (559386).

2^2216719 is an apocalyptic number.

2216719 is a deficient number, since it is larger than the sum of its proper divisors (20825).

2216719 is a wasteful number, since it uses less digits than its factorization.

2216719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20824.

The product of its digits is 1512, while the sum is 28.

The square root of 2216719 is about 1488.8650039544. The cubic root of 2216719 is about 130.3877770608.

The spelling of 2216719 in words is "two million, two hundred sixteen thousand, seven hundred nineteen".