672205 has 8 divisors (see below), whose sum is σ = 811512. Its totient is φ = 534528.

The previous prime is 672193. The next prime is 672209. The reversal of 672205 is 502276.

It can be written as a sum of positive squares in 4 ways, for example, as 162409 + 509796 = 403^2 + 714^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 672205 - 2¹⁷ = 541133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877 + ... + 1453.

It is an arithmetic number, because the mean of its divisors is an integer number (101439).

2⁶⁷²²⁰⁵ is an apocalyptic number.

It is an amenable number.

672205 is a deficient number, since it is larger than the sum of its proper divisors (139307).

672205 is a wasteful number, since it uses less digits than its factorization.

672205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 672205 is about 819.8810889391. The cubic root of 672205 is about 87.5992886524.

The spelling of 672205 in words is "six hundred seventy-two thousand, two hundred five".