16694973 has 6 divisors (see below), whose sum is σ = 24114974. Its totient is φ = 11129976.

The previous prime is 16694963. The next prime is 16694989. The reversal of 16694973 is 37949661.

It can be written as a sum of positive squares in only one way, i.e., 15824484 + 870489 = 3978^2 + 933^2 .

It is not a de Polignac number, because 16694973 - 2¹³ = 16686781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16694903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 927490 + ... + 927507.

Almost surely, 2^16694973 is an apocalyptic number.

It is an amenable number.

16694973 is a deficient number, since it is larger than the sum of its proper divisors (7420001).

16694973 is a wasteful number, since it uses less digits than its factorization.

16694973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855003 (or 1855000 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 16694973 is about 4085.9482375576. The cubic root of 16694973 is about 255.5810050760.

The spelling of 16694973 in words is "sixteen million, six hundred ninety-four thousand, nine hundred seventy-three".