2217706706 has 8 divisors (see below), whose sum is σ = 3433868544. Its totient is φ = 1073083860.

The previous prime is 2217706669. The next prime is 2217706709. The reversal of 2217706706 is 6076077122.

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 2217706706.

It is not an unprimeable number, because it can be changed into a prime (2217706709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17884670 + ... + 17884793.

It is an arithmetic number, because the mean of its divisors is an integer number (429233568).

Almost surely, 2^2217706706 is an apocalyptic number.

2217706706 is a deficient number, since it is larger than the sum of its proper divisors (1216161838).

2217706706 is a wasteful number, since it uses less digits than its factorization.

2217706706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35769496.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 2217706706 is about 47092.5334421498. The cubic root of 2217706706 is about 1304.0713986180.

The spelling of 2217706706 in words is "two billion, two hundred seventeen million, seven hundred six thousand, seven hundred six".