988508717 has 8 divisors (see below), whose sum is σ = 1130838912. Its totient is φ = 846457200.

The previous prime is 988508711. The next prime is 988508723. The reversal of 988508717 is 717805889.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (988508711) and next prime (988508723).

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

It is a cyclic number.

It is not a de Polignac number, because 988508717 - 2²⁰ = 987460141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988508711) 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, 62009 + ... + 76302.

It is an arithmetic number, because the mean of its divisors is an integer number (141354864).

Almost surely, 2^988508717 is an apocalyptic number.

It is an amenable number.

988508717 is a deficient number, since it is larger than the sum of its proper divisors (142330195).

988508717 is a wasteful number, since it uses less digits than its factorization.

988508717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139339.

The product of its (nonzero) digits is 1128960, while the sum is 53.

The square root of 988508717 is about 31440.5584715030. The cubic root of 988508717 is about 996.1548057657.

The spelling of 988508717 in words is "nine hundred eighty-eight million, five hundred eight thousand, seven hundred seventeen".