16676617 has 2 divisors, whose sum is σ = 16676618. Its totient is φ = 16676616.

The previous prime is 16676581. The next prime is 16676629. The reversal of 16676617 is 71667661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15555136 + 1121481 = 3944^2 + 1059^2 .

It is a cyclic number.

It is not a de Polignac number, because 16676617 - 2¹⁵ = 16643849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16676617.

It is not a weakly prime, because it can be changed into another prime (16676687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8338308 + 8338309.

It is an arithmetic number, because the mean of its divisors is an integer number (8338309).

Almost surely, 2^16676617 is an apocalyptic number.

It is an amenable number.

16676617 is a deficient number, since it is larger than the sum of its proper divisors (1).

16676617 is an equidigital number, since it uses as much as digits as its factorization.

16676617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 16676617 is about 4083.7013847734. The cubic root of 16676617 is about 255.4873009136.

The spelling of 16676617 in words is "sixteen million, six hundred seventy-six thousand, six hundred seventeen".