16728347 has 2 divisors, whose sum is σ = 16728348. Its totient is φ = 16728346.

The previous prime is 16728319. The next prime is 16728367. The reversal of 16728347 is 74382761.

It is a strong prime.

It is an emirp because it is prime and its reverse (74382761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16728347 - 2¹⁰ = 16727323 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16728347.

It is not a weakly prime, because it can be changed into another prime (16728367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8364173 + 8364174.

It is an arithmetic number, because the mean of its divisors is an integer number (8364174).

Almost surely, 2^16728347 is an apocalyptic number.

16728347 is a deficient number, since it is larger than the sum of its proper divisors (1).

16728347 is an equidigital number, since it uses as much as digits as its factorization.

16728347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 16728347 is about 4090.0301954876. The cubic root of 16728347 is about 255.7511976838.

The spelling of 16728347 in words is "sixteen million, seven hundred twenty-eight thousand, three hundred forty-seven".