676664 has 16 divisors (see below), whose sum is σ = 1300320. Its totient is φ = 329920.

The previous prime is 676661. The next prime is 676679. The reversal of 676664 is 466676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704 + ... + 1359.

It is an arithmetic number, because the mean of its divisors is an integer number (81270).

2⁶⁷⁶⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

676664 is a deficient number, since it is larger than the sum of its proper divisors (623656).

676664 is a wasteful number, since it uses less digits than its factorization.

676664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110 (or 2106 counting only the distinct ones).

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

The square root of 676664 is about 822.5958910668. The cubic root of 676664 is about 87.7925554473.

The spelling of 676664 in words is "six hundred seventy-six thousand, six hundred sixty-four".