16728319 has 2 divisors, whose sum is σ = 16728320. Its totient is φ = 16728318.

The previous prime is 16728277. The next prime is 16728347. The reversal of 16728319 is 91382761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16728319 - 2⁷ = 16728191 is a prime.

It is a super-2 number, since 2×16728319² = 559673313131522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16728619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8364159 + 8364160.

It is an arithmetic number, because the mean of its divisors is an integer number (8364160).

Almost surely, 2^16728319 is an apocalyptic number.

16728319 is a deficient number, since it is larger than the sum of its proper divisors (1).

16728319 is an equidigital number, since it uses as much as digits as its factorization.

16728319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 16728319 is about 4090.0267725285. The cubic root of 16728319 is about 255.7510549911.

The spelling of 16728319 in words is "sixteen million, seven hundred twenty-eight thousand, three hundred nineteen".