499999717 has 4 divisors (see below), whose sum is σ = 571428256. Its totient is φ = 428571180.

The previous prime is 499999697. The next prime is 499999723. The reversal of 499999717 is 717999994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499999717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499999417) 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, 35714259 + ... + 35714272.

It is an arithmetic number, because the mean of its divisors is an integer number (142857064).

Almost surely, 2^499999717 is an apocalyptic number.

It is an amenable number.

499999717 is a deficient number, since it is larger than the sum of its proper divisors (71428539).

499999717 is an equidigital number, since it uses as much as digits as its factorization.

499999717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71428538.

The product of its digits is 11573604, while the sum is 64.

The square root of 499999717 is about 22360.6734469246. The cubic root of 499999717 is about 793.7003762392.

The spelling of 499999717 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, seven hundred seventeen".