16855705 has 8 divisors (see below), whose sum is σ = 20264832. Its totient is φ = 13459248.

The previous prime is 16855681. The next prime is 16855733. The reversal of 16855705 is 50755861.

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 16855705 - 2⁵ = 16855673 is a prime.

It is a super-2 number, since 2×16855705² = 568229582094050, which contains 22 as substring.

It is a Duffinian 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, 64 + ... + 5806.

It is an arithmetic number, because the mean of its divisors is an integer number (2533104).

Almost surely, 2^16855705 is an apocalyptic number.

It is an amenable number.

16855705 is a deficient number, since it is larger than the sum of its proper divisors (3409127).

16855705 is an equidigital number, since it uses as much as digits as its factorization.

16855705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6335.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 16855705 is about 4105.5699969675. The cubic root of 16855705 is about 256.3985947598.

The spelling of 16855705 in words is "sixteen million, eight hundred fifty-five thousand, seven hundred five".