2684298217 has 2 divisors, whose sum is σ = 2684298218. Its totient is φ = 2684298216.

The previous prime is 2684298209. The next prime is 2684298223. The reversal of 2684298217 is 7128924862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2579522521 + 104775696 = 50789^2 + 10236^2 .

It is a cyclic number.

It is not a de Polignac number, because 2684298217 - 2³ = 2684298209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2684298517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342149108 + 1342149109.

It is an arithmetic number, because the mean of its divisors is an integer number (1342149109).

Almost surely, 2^2684298217 is an apocalyptic number.

It is an amenable number.

2684298217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2684298217 is an equidigital number, since it uses as much as digits as its factorization.

2684298217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 49.

The square root of 2684298217 is about 51810.2134429110. The cubic root of 2684298217 is about 1389.7720960649.

The spelling of 2684298217 in words is "two billion, six hundred eighty-four million, two hundred ninety-eight thousand, two hundred seventeen".