2217394273 has 2 divisors, whose sum is σ = 2217394274. Its totient is φ = 2217394272.

The previous prime is 2217394271. The next prime is 2217394301. The reversal of 2217394273 is 3724937122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1529748544 + 687645729 = 39112^2 + 26223^2 .

It is a cyclic number.

It is not a de Polignac number, because 2217394273 - 2¹ = 2217394271 is a prime.

Together with 2217394271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2217394271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108697136 + 1108697137.

It is an arithmetic number, because the mean of its divisors is an integer number (1108697137).

Almost surely, 2^2217394273 is an apocalyptic number.

It is an amenable number.

2217394273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217394273 is an equidigital number, since it uses as much as digits as its factorization.

2217394273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 40.

The square root of 2217394273 is about 47089.2161009291. The cubic root of 2217394273 is about 1304.0101560631.

The spelling of 2217394273 in words is "two billion, two hundred seventeen million, three hundred ninety-four thousand, two hundred seventy-three".