2216702287 has 4 divisors (see below), whose sum is σ = 2226642880. Its totient is φ = 2206761696.

The previous prime is 2216702273. The next prime is 2216702291. The reversal of 2216702287 is 7822076122.

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-2216702287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216702237) 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, 4969962 + ... + 4970407.

It is an arithmetic number, because the mean of its divisors is an integer number (556660720).

Almost surely, 2^2216702287 is an apocalyptic number.

2216702287 is a deficient number, since it is larger than the sum of its proper divisors (9940593).

2216702287 is an equidigital number, since it uses as much as digits as its factorization.

2216702287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9940592.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 2216702287 is about 47081.8679217382. The cubic root of 2216702287 is about 1303.8744937280.

The spelling of 2216702287 in words is "two billion, two hundred sixteen million, seven hundred two thousand, two hundred eighty-seven".