103947 has 4 divisors (see below), whose sum is σ = 138600. Its totient is φ = 69296.

The previous prime is 103919. The next prime is 103951. The reversal of 103947 is 749301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103947 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 103947.

It is not an unprimeable number, because it can be changed into a prime (103967) 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, 17322 + ... + 17327.

It is an arithmetic number, because the mean of its divisors is an integer number (34650).

2¹⁰³⁹⁴⁷ is an apocalyptic number.

103947 is a deficient number, since it is larger than the sum of its proper divisors (34653).

103947 is an equidigital number, since it uses as much as digits as its factorization.

103947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34652.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 103947 is about 322.4081264485. The cubic root of 103947 is about 47.0187038881.

It can be divided in two parts, 10394 and 7, that added together give a palindrome (10401).

The spelling of 103947 in words is "one hundred three thousand, nine hundred forty-seven".