971417563 has 2 divisors, whose sum is σ = 971417564. Its totient is φ = 971417562.

The previous prime is 971417507. The next prime is 971417597. The reversal of 971417563 is 365714179.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 971417563 - 2²⁵ = 937863131 is a prime.

It is not a weakly prime, because it can be changed into another prime (971417963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485708781 + 485708782.

It is an arithmetic number, because the mean of its divisors is an integer number (485708782).

Almost surely, 2^971417563 is an apocalyptic number.

971417563 is a deficient number, since it is larger than the sum of its proper divisors (1).

971417563 is an equidigital number, since it uses as much as digits as its factorization.

971417563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 43.

The square root of 971417563 is about 31167.5722987852. The cubic root of 971417563 is about 990.3802786953.

The spelling of 971417563 in words is "nine hundred seventy-one million, four hundred seventeen thousand, five hundred sixty-three".