2438791717 has 2 divisors, whose sum is σ = 2438791718. Its totient is φ = 2438791716.

The previous prime is 2438791687. The next prime is 2438791757. The reversal of 2438791717 is 7171978342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1818084321 + 620707396 = 42639^2 + 24914^2 .

It is a cyclic number.

It is not a de Polignac number, because 2438791717 - 2²⁷ = 2304573989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2438791757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1219395858 + 1219395859.

It is an arithmetic number, because the mean of its divisors is an integer number (1219395859).

Almost surely, 2^2438791717 is an apocalyptic number.

It is an amenable number.

2438791717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2438791717 is an equidigital number, since it uses as much as digits as its factorization.

2438791717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 49.

The square root of 2438791717 is about 49384.1241392413. The cubic root of 2438791717 is about 1346.0408405189.

The spelling of 2438791717 in words is "two billion, four hundred thirty-eight million, seven hundred ninety-one thousand, seven hundred seventeen".