671206 has 8 divisors (see below), whose sum is σ = 1022040. Its totient is φ = 330528.

The previous prime is 671201. The next prime is 671219. The reversal of 671206 is 602176.

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 (671201) by changing a digit.

671206 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2371 + ... + 2638.

It is an arithmetic number, because the mean of its divisors is an integer number (127755).

2⁶⁷¹²⁰⁶ is an apocalyptic number.

671206 is a deficient number, since it is larger than the sum of its proper divisors (350834).

671206 is a wasteful number, since it uses less digits than its factorization.

671206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5078.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 671206 is about 819.2716277279. The cubic root of 671206 is about 87.5558717993. Note that the first 3 decimals are identical.

The spelling of 671206 in words is "six hundred seventy-one thousand, two hundred six".