16689796 has 12 divisors (see below), whose sum is σ = 29238748. Its totient is φ = 8335872.

The previous prime is 16689791. The next prime is 16689817. The reversal of 16689796 is 69798661.

It can be written as a sum of positive squares in 2 ways, for example, as 16112196 + 577600 = 4014^2 + 760^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16689791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3580 + ... + 6796.

Almost surely, 2^16689796 is an apocalyptic number.

It is an amenable number.

16689796 is a deficient number, since it is larger than the sum of its proper divisors (12548952).

16689796 is a wasteful number, since it uses less digits than its factorization.

16689796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518 (or 4516 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 16689796 is about 4085.3146757624. The cubic root of 16689796 is about 255.5545843553.

The spelling of 16689796 in words is "sixteen million, six hundred eighty-nine thousand, seven hundred ninety-six".