2213717839 has 2 divisors, whose sum is σ = 2213717840. Its totient is φ = 2213717838.

The previous prime is 2213717837. The next prime is 2213717897. The reversal of 2213717839 is 9387173122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2213717839 - 2¹ = 2213717837 is a prime.

Together with 2213717837, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2213717795 and 2213717804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2213717837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106858919 + 1106858920.

It is an arithmetic number, because the mean of its divisors is an integer number (1106858920).

Almost surely, 2^2213717839 is an apocalyptic number.

2213717839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2213717839 is an equidigital number, since it uses as much as digits as its factorization.

2213717839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 2213717839 is about 47050.1630071565. The cubic root of 2213717839 is about 1303.2890755716.

The spelling of 2213717839 in words is "two billion, two hundred thirteen million, seven hundred seventeen thousand, eight hundred thirty-nine".