517890005 has 8 divisors (see below), whose sum is σ = 624414624. Its totient is φ = 412347600.

The previous prime is 517889993. The next prime is 517890053. The reversal of 517890005 is 500098715.

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

It is not a de Polignac number, because 517890005 - 2⁶ = 517889941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244391 + ... + 246500.

It is an arithmetic number, because the mean of its divisors is an integer number (78051828).

Almost surely, 2^517890005 is an apocalyptic number.

It is an amenable number.

517890005 is a deficient number, since it is larger than the sum of its proper divisors (106524619).

517890005 is a wasteful number, since it uses less digits than its factorization.

517890005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491107.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 517890005 is about 22757.1967737681. The cubic root of 517890005 is about 803.0560219844.

The spelling of 517890005 in words is "five hundred seventeen million, eight hundred ninety thousand, five".