517428897 has 8 divisors (see below), whose sum is σ = 706732320. Its totient is φ = 336539040.

The previous prime is 517428893. The next prime is 517428913. The reversal of 517428897 is 798824715.

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

It is not a de Polignac number, because 517428897 - 2² = 517428893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (517428893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2103247 + ... + 2103492.

It is an arithmetic number, because the mean of its divisors is an integer number (88341540).

Almost surely, 2^517428897 is an apocalyptic number.

It is an amenable number.

517428897 is a deficient number, since it is larger than the sum of its proper divisors (189303423).

517428897 is a wasteful number, since it uses less digits than its factorization.

517428897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4206783.

The product of its digits is 1128960, while the sum is 51.

The square root of 517428897 is about 22747.0634808100. The cubic root of 517428897 is about 802.8176151763.

The spelling of 517428897 in words is "five hundred seventeen million, four hundred twenty-eight thousand, eight hundred ninety-seven".