104247 has 28 divisors (see below), whose sum is σ = 183624. Its totient is φ = 58320.

The previous prime is 104243. The next prime is 104281. The reversal of 104247 is 742401.

It is a happy number.

It is not a de Polignac number, because 104247 - 2² = 104243 is a prime.

104247 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 8013 + ... + 8025.

It is an arithmetic number, because the mean of its divisors is an integer number (6558).

2¹⁰⁴²⁴⁷ is an apocalyptic number.

104247 is a deficient number, since it is larger than the sum of its proper divisors (79377).

104247 is an equidigital number, since it uses as much as digits as its factorization.

104247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 104247 is about 322.8730400637. The cubic root of 104247 is about 47.0638937858.

Adding to 104247 its reverse (742401), we get a palindrome (846648).

It can be divided in two parts, 1042 and 47, that added together give a square (1089 = 33²).

The spelling of 104247 in words is "one hundred four thousand, two hundred forty-seven", and thus it is an iban number.