247017 has 4 divisors (see below), whose sum is σ = 329360. Its totient is φ = 164676.

The previous prime is 247007. The next prime is 247031. The reversal of 247017 is 710742.

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 not a de Polignac number, because 247017 - 2⁴ = 247001 is a prime.

It is a super-2 number, since 2×247017² = 122034796578, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 246984 and 247002.

It is not an unprimeable number, because it can be changed into a prime (247007) 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, 41167 + ... + 41172.

It is an arithmetic number, because the mean of its divisors is an integer number (82340).

2²⁴⁷⁰¹⁷ is an apocalyptic number.

It is an amenable number.

247017 is a deficient number, since it is larger than the sum of its proper divisors (82343).

247017 is an equidigital number, since it uses as much as digits as its factorization.

247017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82342.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 247017 is about 497.0080482246. The cubic root of 247017 is about 62.7444929904.

Adding to 247017 its reverse (710742), we get a palindrome (957759).

The spelling of 247017 in words is "two hundred forty-seven thousand, seventeen", and thus it is an iban number.