104841721 has 8 divisors (see below), whose sum is σ = 108525824. Its totient is φ = 101176560.

The previous prime is 104841719. The next prime is 104841731. The reversal of 104841721 is 127148401.

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

It is not a de Polignac number, because 104841721 - 2¹ = 104841719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104841721.

It is not an unprimeable number, because it can be changed into a prime (104841731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7030 + ... + 16096.

It is an arithmetic number, because the mean of its divisors is an integer number (13565728).

Almost surely, 2^104841721 is an apocalyptic number.

It is an amenable number.

104841721 is a deficient number, since it is larger than the sum of its proper divisors (3684103).

104841721 is an equidigital number, since it uses as much as digits as its factorization.

104841721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9471.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 104841721 is about 10239.2246288476. The cubic root of 104841721 is about 471.5322274276.

The spelling of 104841721 in words is "one hundred four million, eight hundred forty-one thousand, seven hundred twenty-one".