676559 has 8 divisors (see below), whose sum is σ = 739872. Its totient is φ = 614880.

The previous prime is 676523. The next prime is 676573. The reversal of 676559 is 955676.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-676559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 676559.

It is not an unprimeable number, because it can be changed into a prime (676589) 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 7 ways as a sum of consecutive naturals, for example, 557 + ... + 1289.

It is an arithmetic number, because the mean of its divisors is an integer number (92484).

2⁶⁷⁶⁵⁵⁹ is an apocalyptic number.

676559 is a deficient number, since it is larger than the sum of its proper divisors (63313).

676559 is a wasteful number, since it uses less digits than its factorization.

676559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817.

The product of its digits is 56700, while the sum is 38.

The square root of 676559 is about 822.5320662442. The cubic root of 676559 is about 87.7880142002.

It can be divided in two parts, 67 and 6559, that multiplied together give a triangular number (439453 = T₉₃₇).

The spelling of 676559 in words is "six hundred seventy-six thousand, five hundred fifty-nine".