16694885 has 4 divisors (see below), whose sum is σ = 20033868. Its totient is φ = 13355904.

The previous prime is 16694861. The next prime is 16694891. The reversal of 16694885 is 58849661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58849661 = 13 ⋅4526897.

It can be written as a sum of positive squares in 2 ways, for example, as 5094049 + 11600836 = 2257^2 + 3406^2 .

It is a cyclic number.

It is not a de Polignac number, because 16694885 - 2¹² = 16690789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1669484 + ... + 1669493.

It is an arithmetic number, because the mean of its divisors is an integer number (5008467).

Almost surely, 2^16694885 is an apocalyptic number.

It is an amenable number.

16694885 is a deficient number, since it is larger than the sum of its proper divisors (3338983).

16694885 is an equidigital number, since it uses as much as digits as its factorization.

16694885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338982.

The product of its digits is 414720, while the sum is 47.

The square root of 16694885 is about 4085.9374689293. The cubic root of 16694885 is about 255.5805560153.

The spelling of 16694885 in words is "sixteen million, six hundred ninety-four thousand, eight hundred eighty-five".