16677239 has 2 divisors, whose sum is σ = 16677240. Its totient is φ = 16677238.

The previous prime is 16677211. The next prime is 16677247. The reversal of 16677239 is 93277661.

It is a strong prime.

It is an emirp because it is prime and its reverse (93277661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16677239 - 2²⁰ = 15628663 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16677196 and 16677205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16677209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8338619 + 8338620.

It is an arithmetic number, because the mean of its divisors is an integer number (8338620).

Almost surely, 2^16677239 is an apocalyptic number.

16677239 is a deficient number, since it is larger than the sum of its proper divisors (1).

16677239 is an equidigital number, since it uses as much as digits as its factorization.

16677239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 41.

The square root of 16677239 is about 4083.7775404642. Note that the first 3 decimals coincide. The cubic root of 16677239 is about 255.4904772398.

The spelling of 16677239 in words is "sixteen million, six hundred seventy-seven thousand, two hundred thirty-nine".