1716516317 has 4 divisors (see below), whose sum is σ = 1717503996. Its totient is φ = 1715528640.

The previous prime is 1716516313. The next prime is 1716516343. The reversal of 1716516317 is 7136156171.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 277755556 + 1438760761 = 16666^2 + 37931^2 .

It is a cyclic number.

It is not a de Polignac number, because 1716516317 - 2² = 1716516313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1716516313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491228 + ... + 494709.

It is an arithmetic number, because the mean of its divisors is an integer number (429375999).

Almost surely, 2^1716516317 is an apocalyptic number.

It is an amenable number.

1716516317 is a deficient number, since it is larger than the sum of its proper divisors (987679).

1716516317 is an equidigital number, since it uses as much as digits as its factorization.

1716516317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987678.

The product of its digits is 26460, while the sum is 38.

The square root of 1716516317 is about 41430.8618906245. The cubic root of 1716516317 is about 1197.3358295869.

The spelling of 1716516317 in words is "one billion, seven hundred sixteen million, five hundred sixteen thousand, three hundred seventeen".