9987717313 has 8 divisors (see below), whose sum is σ = 11418841728. Its totient is φ = 8557669824.

The previous prime is 9987717239. The next prime is 9987717319. The reversal of 9987717313 is 3137177899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9987717313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9987717319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249256 + ... + 286537.

It is an arithmetic number, because the mean of its divisors is an integer number (1427355216).

Almost surely, 2^9987717313 is an apocalyptic number.

It is an amenable number.

9987717313 is a deficient number, since it is larger than the sum of its proper divisors (1431124415).

9987717313 is a wasteful number, since it uses less digits than its factorization.

9987717313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538463.

The product of its digits is 2000376, while the sum is 55.

The square root of 9987717313 is about 99938.5676953597. The cubic root of 9987717313 is about 2153.5522537449.

The spelling of 9987717313 in words is "nine billion, nine hundred eighty-seven million, seven hundred seventeen thousand, three hundred thirteen".