2216782 has 8 divisors (see below), whose sum is σ = 3350952. Its totient is φ = 1099800.

The previous prime is 2216777. The next prime is 2216803. The reversal of 2216782 is 2876122.

2216782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2216782.

It is a congruent number.

It is an unprimeable number.

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, 3969 + ... + 4492.

It is an arithmetic number, because the mean of its divisors is an integer number (418869).

2^2216782 is an apocalyptic number.

2216782 is a deficient number, since it is larger than the sum of its proper divisors (1134170).

2216782 is a wasteful number, since it uses less digits than its factorization.

2216782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8594.

The product of its digits is 2688, while the sum is 28.

The square root of 2216782 is about 1488.8861608599. The cubic root of 2216782 is about 130.3890122725.

The spelling of 2216782 in words is "two million, two hundred sixteen thousand, seven hundred eighty-two".