104721 has 8 divisors (see below), whose sum is σ = 141984. Its totient is φ = 68640.

The previous prime is 104717. The next prime is 104723. The reversal of 104721 is 127401.

104721 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

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

It is not a de Polignac number, because 104721 - 2² = 104717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104721.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 104721.

It is not an unprimeable number, because it can be changed into a prime (104723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60 + ... + 461.

It is an arithmetic number, because the mean of its divisors is an integer number (17748).

2¹⁰⁴⁷²¹ is an apocalyptic number.

It is an amenable number.

104721 is a deficient number, since it is larger than the sum of its proper divisors (37263).

104721 is an equidigital number, since it uses as much as digits as its factorization.

104721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 104721 is about 323.6062422142. The cubic root of 104721 is about 47.1351174491.

The spelling of 104721 in words is "one hundred four thousand, seven hundred twenty-one", and thus it is an iban number.