671207 has 4 divisors (see below), whose sum is σ = 685536. Its totient is φ = 656880.

The previous prime is 671201. The next prime is 671219. The reversal of 671207 is 702176.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 671207 - 2⁸ = 670951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 671207.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7094 + ... + 7187.

It is an arithmetic number, because the mean of its divisors is an integer number (171384).

2⁶⁷¹²⁰⁷ is an apocalyptic number.

671207 is a deficient number, since it is larger than the sum of its proper divisors (14329).

671207 is a wasteful number, since it uses less digits than its factorization.

671207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14328.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 671207 is about 819.2722380259. The cubic root of 671207 is about 87.5559152812. Note that the first 3 decimals are identical.

It can be divided in two parts, 671 and 207, that added together give a palindrome (878).

The spelling of 671207 in words is "six hundred seventy-one thousand, two hundred seven".