672217 has 16 divisors (see below), whose sum is σ = 846720. Its totient is φ = 519552.

The previous prime is 672209. The next prime is 672223. The reversal of 672217 is 712276.

It is a cyclic number.

It is not a de Polignac number, because 672217 - 2³ = 672209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 672191 and 672200.

It is not an unprimeable number, because it can be changed into a prime (672227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7509 + ... + 7597.

It is an arithmetic number, because the mean of its divisors is an integer number (52920).

2⁶⁷²²¹⁷ is an apocalyptic number.

It is an amenable number.

672217 is a deficient number, since it is larger than the sum of its proper divisors (174503).

672217 is a wasteful number, since it uses less digits than its factorization.

672217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192.

The product of its digits is 1176, while the sum is 25.

The square root of 672217 is about 819.8884070409. Note that the first 3 decimals coincide. The cubic root of 672217 is about 87.5998099146.

The spelling of 672217 in words is "six hundred seventy-two thousand, two hundred seventeen".