917216063 has 2 divisors, whose sum is σ = 917216064. Its totient is φ = 917216062.

The previous prime is 917216059. The next prime is 917216087. The reversal of 917216063 is 360612719.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 917216063 - 2² = 917216059 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (917216023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458608031 + 458608032.

It is an arithmetic number, because the mean of its divisors is an integer number (458608032).

Almost surely, 2^917216063 is an apocalyptic number.

917216063 is a deficient number, since it is larger than the sum of its proper divisors (1).

917216063 is an equidigital number, since it uses as much as digits as its factorization.

917216063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 917216063 is about 30285.5751637640. The cubic root of 917216063 is about 971.6068110998.

The spelling of 917216063 in words is "nine hundred seventeen million, two hundred sixteen thousand, sixty-three".