671708 has 12 divisors (see below), whose sum is σ = 1213632. Its totient is φ = 324960.

The previous prime is 671701. The next prime is 671717. The reversal of 671708 is 807176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585 + ... + 2832.

It is an arithmetic number, because the mean of its divisors is an integer number (101136).

2⁶⁷¹⁷⁰⁸ is an apocalyptic number.

It is an amenable number.

671708 is a deficient number, since it is larger than the sum of its proper divisors (541924).

671708 is a wasteful number, since it uses less digits than its factorization.

671708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452 (or 5450 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 671708 is about 819.5779401619. The cubic root of 671708 is about 87.5776942575.

The spelling of 671708 in words is "six hundred seventy-one thousand, seven hundred eight".