676643 has 8 divisors (see below), whose sum is σ = 745200. Its totient is φ = 609280.

The previous prime is 676601. The next prime is 676649. The reversal of 676643 is 346676.

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 676643 - 2⁸ = 676387 is a prime.

It is a super-3 number, since 3×676643³ = 929394364333259121, which contains 333 as substring.

It is a Duffinian 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 in 7 ways as a sum of consecutive naturals, for example, 1283 + ... + 1731.

It is an arithmetic number, because the mean of its divisors is an integer number (93150).

2⁶⁷⁶⁶⁴³ is an apocalyptic number.

676643 is a deficient number, since it is larger than the sum of its proper divisors (68557).

676643 is a wasteful number, since it uses less digits than its factorization.

676643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597.

The product of its digits is 18144, while the sum is 32.

The square root of 676643 is about 822.5831264985. The cubic root of 676643 is about 87.7916472354.

The spelling of 676643 in words is "six hundred seventy-six thousand, six hundred forty-three".