16704641 has 8 divisors (see below), whose sum is σ = 17033184. Its totient is φ = 16378560.

The previous prime is 16704637. The next prime is 16704673. The reversal of 16704641 is 14640761.

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

It is a cyclic number.

It is not a de Polignac number, because 16704641 - 2² = 16704637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16704341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18521 + ... + 19401.

It is an arithmetic number, because the mean of its divisors is an integer number (2129148).

Almost surely, 2^16704641 is an apocalyptic number.

It is an amenable number.

16704641 is a deficient number, since it is larger than the sum of its proper divisors (328543).

16704641 is an equidigital number, since it uses as much as digits as its factorization.

16704641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 16704641 is about 4087.1311454369. The cubic root of 16704641 is about 255.6303309087.

The spelling of 16704641 in words is "sixteen million, seven hundred four thousand, six hundred forty-one".