247317 has 8 divisors (see below), whose sum is σ = 376896. Its totient is φ = 141312.

The previous prime is 247309. The next prime is 247337. The reversal of 247317 is 713742.

247317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 247317 - 2³ = 247309 is a prime.

It is a super-2 number, since 2×247317² = 122331396978, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 247317.

It is not an unprimeable number, because it can be changed into a prime (247337) 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, 5868 + ... + 5909.

It is an arithmetic number, because the mean of its divisors is an integer number (47112).

2²⁴⁷³¹⁷ is an apocalyptic number.

It is an amenable number.

247317 is a deficient number, since it is larger than the sum of its proper divisors (129579).

247317 is a wasteful number, since it uses less digits than its factorization.

247317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11787.

The product of its digits is 1176, while the sum is 24.

The square root of 247317 is about 497.3097626229. The cubic root of 247317 is about 62.7698835947.

The spelling of 247317 in words is "two hundred forty-seven thousand, three hundred seventeen", and thus it is an iban number.