517247 has 8 divisors (see below), whose sum is σ = 553344. Its totient is φ = 482328.

The previous prime is 517243. The next prime is 517249. The reversal of 517247 is 742715.

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 517247 - 2² = 517243 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 (517241) 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, 728 + ... + 1250.

It is an arithmetic number, because the mean of its divisors is an integer number (69168).

2⁵¹⁷²⁴⁷ is an apocalyptic number.

517247 is a deficient number, since it is larger than the sum of its proper divisors (36097).

517247 is a wasteful number, since it uses less digits than its factorization.

517247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589.

The product of its digits is 1960, while the sum is 26.

The square root of 517247 is about 719.1988598434. The cubic root of 517247 is about 80.2723529959.

The spelling of 517247 in words is "five hundred seventeen thousand, two hundred forty-seven".