2917720469 has 2 divisors, whose sum is σ = 2917720470. Its totient is φ = 2917720468.

The previous prime is 2917720459. The next prime is 2917720513. The reversal of 2917720469 is 9640277192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2503801444 + 413919025 = 50038^2 + 20345^2 .

It is a cyclic number.

It is not a de Polignac number, because 2917720469 - 2⁸ = 2917720213 is a prime.

It is a super-2 number, since 2×2917720469² = 17026185470443159922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2917720439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1458860234 + 1458860235.

It is an arithmetic number, because the mean of its divisors is an integer number (1458860235).

Almost surely, 2^2917720469 is an apocalyptic number.

It is an amenable number.

2917720469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2917720469 is an equidigital number, since it uses as much as digits as its factorization.

2917720469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 2917720469 is about 54015.9279194572. The cubic root of 2917720469 is about 1428.9418662525.

The spelling of 2917720469 in words is "two billion, nine hundred seventeen million, seven hundred twenty thousand, four hundred sixty-nine".