671204 has 6 divisors (see below), whose sum is σ = 1174614. Its totient is φ = 335600.

The previous prime is 671201. The next prime is 671219. The reversal of 671204 is 402176.

It can be written as a sum of positive squares in only one way, i.e., 357604 + 313600 = 598^2 + 560^2 .

It is not an unprimeable number, because it can be changed into a prime (671201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83897 + ... + 83904.

It is an arithmetic number, because the mean of its divisors is an integer number (195769).

2⁶⁷¹²⁰⁴ is an apocalyptic number.

It is an amenable number.

671204 is a deficient number, since it is larger than the sum of its proper divisors (503410).

671204 is a wasteful number, since it uses less digits than its factorization.

671204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167805 (or 167803 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 671204 is about 819.2704071306. The cubic root of 671204 is about 87.5557848355. Note that the first 3 decimals are identical.

The spelling of 671204 in words is "six hundred seventy-one thousand, two hundred four".