72206 has 8 divisors (see below), whose sum is σ = 109920. Its totient is φ = 35568.

The previous prime is 72173. The next prime is 72211. The reversal of 72206 is 60227.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71 + ... + 386.

It is an arithmetic number, because the mean of its divisors is an integer number (13740).

2⁷²²⁰⁶ is an apocalyptic number.

72206 is a deficient number, since it is larger than the sum of its proper divisors (37714).

72206 is a wasteful number, since it uses less digits than its factorization.

72206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 72206 is about 268.7117414629. The cubic root of 72206 is about 41.6413143552.

The spelling of 72206 in words is "seventy-two thousand, two hundred six".