103647 has 4 divisors (see below), whose sum is σ = 138200. Its totient is φ = 69096.

The previous prime is 103643. The next prime is 103651. The reversal of 103647 is 746301.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (103643) and next prime (103651).

It is not a de Polignac number, because 103647 - 2² = 103643 is a prime.

It is a D-number.

It is a Duffinian number.

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 103647.

It is not an unprimeable number, because it can be changed into a prime (103643) 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 3 ways as a sum of consecutive naturals, for example, 17272 + ... + 17277.

It is an arithmetic number, because the mean of its divisors is an integer number (34550).

2¹⁰³⁶⁴⁷ is an apocalyptic number.

103647 is a deficient number, since it is larger than the sum of its proper divisors (34553).

103647 is an equidigital number, since it uses as much as digits as its factorization.

103647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34552.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 103647 is about 321.9425414573. The cubic root of 103647 is about 46.9734269586.

Adding to 103647 its reverse (746301), we get a palindrome (849948).

The spelling of 103647 in words is "one hundred three thousand, six hundred forty-seven".