16804427 has 8 divisors (see below), whose sum is σ = 17755200. Its totient is φ = 15878464.

The previous prime is 16804423. The next prime is 16804433. The reversal of 16804427 is 72440861.

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 16804427 - 2² = 16804423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16804393 and 16804402.

It is not an unprimeable number, because it can be changed into a prime (16804423) 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, 4802 + ... + 7527.

It is an arithmetic number, because the mean of its divisors is an integer number (2219400).

Almost surely, 2^16804427 is an apocalyptic number.

16804427 is a deficient number, since it is larger than the sum of its proper divisors (950773).

16804427 is a wasteful number, since it uses less digits than its factorization.

16804427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12405.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 16804427 is about 4099.3203095147. The cubic root of 16804427 is about 256.1383275454.

The spelling of 16804427 in words is "sixteen million, eight hundred four thousand, four hundred twenty-seven".