117550717 has 4 divisors (see below), whose sum is σ = 121604220. Its totient is φ = 113497216.

The previous prime is 117550687. The next prime is 117550753. The reversal of 117550717 is 717055711.

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 98287396 + 19263321 = 9914^2 + 4389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117550717 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 (117550757) 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, 2026708 + ... + 2026765.

It is an arithmetic number, because the mean of its divisors is an integer number (30401055).

Almost surely, 2^117550717 is an apocalyptic number.

It is an amenable number.

117550717 is a deficient number, since it is larger than the sum of its proper divisors (4053503).

117550717 is an equidigital number, since it uses as much as digits as its factorization.

117550717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4053502.

The product of its (nonzero) digits is 8575, while the sum is 34.

The square root of 117550717 is about 10842.0808427165. The cubic root of 117550717 is about 489.8635146731.

The spelling of 117550717 in words is "one hundred seventeen million, five hundred fifty thousand, seven hundred seventeen".