675646 has 8 divisors (see below), whose sum is σ = 1017000. Its totient is φ = 336648.

The previous prime is 675643. The next prime is 675713. The reversal of 675646 is 646576.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675643) 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, 660 + ... + 1336.

It is an arithmetic number, because the mean of its divisors is an integer number (127125).

2⁶⁷⁵⁶⁴⁶ is an apocalyptic number.

675646 is a deficient number, since it is larger than the sum of its proper divisors (341354).

675646 is a wasteful number, since it uses less digits than its factorization.

675646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178.

The product of its digits is 30240, while the sum is 34.

The square root of 675646 is about 821.9768853198. The cubic root of 675646 is about 87.7485071566.

The spelling of 675646 in words is "six hundred seventy-five thousand, six hundred forty-six".