16704321 has 8 divisors (see below), whose sum is σ = 22523040. Its totient is φ = 11010912.

The previous prime is 16704293. The next prime is 16704341. The reversal of 16704321 is 12340761.

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

It is not a de Polignac number, because 16704321 - 2¹³ = 16696129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16704291 and 16704300.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31015 + ... + 31548.

It is an arithmetic number, because the mean of its divisors is an integer number (2815380).

Almost surely, 2^16704321 is an apocalyptic number.

It is an amenable number.

16704321 is a deficient number, since it is larger than the sum of its proper divisors (5818719).

16704321 is an equidigital number, since it uses as much as digits as its factorization.

16704321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62655.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 16704321 is about 4087.0919979859. The cubic root of 16704321 is about 255.6286985833.

The spelling of 16704321 in words is "sixteen million, seven hundred four thousand, three hundred twenty-one".