8915442917 has 2 divisors, whose sum is σ = 8915442918. Its totient is φ = 8915442916.

The previous prime is 8915442911. The next prime is 8915442931. The reversal of 8915442917 is 7192445198.

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., 6375383716 + 2540059201 = 79846^2 + 50399^2 .

It is a cyclic number.

It is not a de Polignac number, because 8915442917 - 2³² = 4620475621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8915442911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4457721458 + 4457721459.

It is an arithmetic number, because the mean of its divisors is an integer number (4457721459).

Almost surely, 2^8915442917 is an apocalyptic number.

It is an amenable number.

8915442917 is a deficient number, since it is larger than the sum of its proper divisors (1).

8915442917 is an equidigital number, since it uses as much as digits as its factorization.

8915442917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 50.

The square root of 8915442917 is about 94421.6231432186. The cubic root of 8915442917 is about 2073.5490251619.

The spelling of 8915442917 in words is "eight billion, nine hundred fifteen million, four hundred forty-two thousand, nine hundred seventeen".