16916 has 6 divisors (see below), whose sum is σ = 29610. Its totient is φ = 8456.

The previous prime is 16903. The next prime is 16921. The reversal of 16916 is 61961.

It can be written as a sum of positive squares in only one way, i.e., 16900 + 16 = 130^2 + 4^2 .

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 16891 and 16900.

It is a congruent number.

It is an unprimeable number.

16916 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111 + ... + 2118.

It is an arithmetic number, because the mean of its divisors is an integer number (4935).

2¹⁶⁹¹⁶ is an apocalyptic number.

It is an amenable number.

16916 is a deficient number, since it is larger than the sum of its proper divisors (12694).

16916 is a wasteful number, since it uses less digits than its factorization.

16916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4233 (or 4231 counting only the distinct ones).

The product of its digits is 324, while the sum is 23.

The square root of 16916 is about 130.0615239031. The cubic root of 16916 is about 25.6703954404.

It can be divided in two parts, 169 and 16, that multiplied together give a square (2704 = 52²).

The spelling of 16916 in words is "sixteen thousand, nine hundred sixteen".