676609 has 8 divisors (see below), whose sum is σ = 720000. Its totient is φ = 634032.

The previous prime is 676601. The next prime is 676649. The reversal of 676609 is 906676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 676609 - 2³ = 676601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (676601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2712 + ... + 2950.

It is an arithmetic number, because the mean of its divisors is an integer number (90000).

2⁶⁷⁶⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

676609 is a deficient number, since it is larger than the sum of its proper divisors (43391).

676609 is a wasteful number, since it uses less digits than its factorization.

676609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 676609 is about 822.5624596345. The cubic root of 676609 is about 87.7901767574.

The spelling of 676609 in words is "six hundred seventy-six thousand, six hundred nine".