671208 has 16 divisors (see below), whose sum is σ = 1678080. Its totient is φ = 223728.

The previous prime is 671201. The next prime is 671219. The reversal of 671208 is 802176.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 27967 = 671208 / (6 + 7 + 1 + 2 + 0 + 8).

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

671208 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 3 ways as a sum of consecutive naturals, for example, 13960 + ... + 14007.

It is an arithmetic number, because the mean of its divisors is an integer number (104880).

2⁶⁷¹²⁰⁸ is an apocalyptic number.

It is an amenable number.

671208 is an abundant number, since it is smaller than the sum of its proper divisors (1006872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671208 is a wasteful number, since it uses less digits than its factorization.

671208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27976 (or 27972 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 671208 is about 819.2728483234. The cubic root of 671208 is about 87.5559587630. Note that the first 3 decimals are identical.

It can be divided in two parts, 67 and 1208, that added together give a triangular number (1275 = T₅₀).

The spelling of 671208 in words is "six hundred seventy-one thousand, two hundred eight".