16804805 has 8 divisors (see below), whose sum is σ = 20200992. Its totient is φ = 13420368.

The previous prime is 16804783. The next prime is 16804817. The reversal of 16804805 is 50840861.

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 16804805 - 2⁶ = 16804741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602 + ... + 5828.

It is an arithmetic number, because the mean of its divisors is an integer number (2525124).

Almost surely, 2^16804805 is an apocalyptic number.

It is an amenable number.

16804805 is a deficient number, since it is larger than the sum of its proper divisors (3396187).

16804805 is an equidigital number, since it uses as much as digits as its factorization.

16804805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5875.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 16804805 is about 4099.3664144597. The cubic root of 16804805 is about 256.1402480624.

The spelling of 16804805 in words is "sixteen million, eight hundred four thousand, eight hundred five".