676646 has 4 divisors (see below), whose sum is σ = 1014972. Its totient is φ = 338322.

The previous prime is 676601. The next prime is 676649. The reversal of 676646 is 646676.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169160 + ... + 169163.

It is an arithmetic number, because the mean of its divisors is an integer number (253743).

2⁶⁷⁶⁶⁴⁶ is an apocalyptic number.

676646 is a deficient number, since it is larger than the sum of its proper divisors (338326).

676646 is a wasteful number, since it uses less digits than its factorization.

676646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338325.

The product of its digits is 36288, while the sum is 35.

The square root of 676646 is about 822.5849500204. The cubic root of 676646 is about 87.7917769811.

The spelling of 676646 in words is "six hundred seventy-six thousand, six hundred forty-six".