16768609 has 16 divisors (see below), whose sum is σ = 19857600. Its totient is φ = 13959360.

The previous prime is 16768607. The next prime is 16768627. The reversal of 16768609 is 90686761.

It is a cyclic number.

It is not a de Polignac number, because 16768609 - 2¹ = 16768607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16768603) 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 in 15 ways as a sum of consecutive naturals, for example, 20914 + ... + 21700.

It is an arithmetic number, because the mean of its divisors is an integer number (1241100).

Almost surely, 2^16768609 is an apocalyptic number.

It is an amenable number.

16768609 is a deficient number, since it is larger than the sum of its proper divisors (3088991).

16768609 is a wasteful number, since it uses less digits than its factorization.

16768609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 16768609 is about 4094.9492060342. The cubic root of 16768609 is about 255.9562150458.

The spelling of 16768609 in words is "sixteen million, seven hundred sixty-eight thousand, six hundred nine".