768609 has 12 divisors (see below), whose sum is σ = 1151696. Its totient is φ = 512244.

The previous prime is 768589. The next prime is 768613. The reversal of 768609 is 906867.

It is not a de Polignac number, because 768609 - 2⁸ = 768353 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (768629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1339 + ... + 1824.

2⁷⁶⁸⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

768609 is a deficient number, since it is larger than the sum of its proper divisors (383087).

768609 is an equidigital number, since it uses as much as digits as its factorization.

768609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178 (or 3166 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 768609 is about 876.7034846515. The cubic root of 768609 is about 91.6013389455.

The spelling of 768609 in words is "seven hundred sixty-eight thousand, six hundred nine".