722206 has 8 divisors (see below), whose sum is σ = 1089504. Its totient is φ = 359040.

The previous prime is 722173. The next prime is 722213. The reversal of 722206 is 602227.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550 + ... + 1321.

It is an arithmetic number, because the mean of its divisors is an integer number (136188).

2⁷²²²⁰⁶ is an apocalyptic number.

722206 is a deficient number, since it is larger than the sum of its proper divisors (367298).

722206 is a wasteful number, since it uses less digits than its factorization.

722206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 722206 is about 849.8270412266. The cubic root of 722206 is about 89.7195384451.

It can be divided in two parts, 72 and 2206, that added together give a triangular number (2278 = T₆₇).

The spelling of 722206 in words is "seven hundred twenty-two thousand, two hundred six".