16694985 has 16 divisors (see below), whose sum is σ = 26959680. Its totient is φ = 8821440.

The previous prime is 16694963. The next prime is 16694989. The reversal of 16694985 is 58949661.

It is not a de Polignac number, because 16694985 - 2⁶ = 16694921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16694989) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3471 + ... + 6740.

It is an arithmetic number, because the mean of its divisors is an integer number (1684980).

Almost surely, 2^16694985 is an apocalyptic number.

16694985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16694985 is a deficient number, since it is larger than the sum of its proper divisors (10264695).

16694985 is a wasteful number, since it uses less digits than its factorization.

16694985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10328.

The product of its digits is 466560, while the sum is 48.

The square root of 16694985 is about 4085.9497060047. The cubic root of 16694985 is about 255.5810663114.

The spelling of 16694985 in words is "sixteen million, six hundred ninety-four thousand, nine hundred eighty-five".