809222 has 8 divisors (see below), whose sum is σ = 1218672. Its totient is φ = 403000.

The previous prime is 809213. The next prime is 809231. The reversal of 809222 is 222908.

It is an interprime number because it is at equal distance from previous prime (809213) and next prime (809231).

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

It is a super-3 number, since 3×809222³ = 1589733398907627144, which contains 333 as substring.

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, 29 + ... + 1272.

It is an arithmetic number, because the mean of its divisors is an integer number (152334).

2⁸⁰⁹²²² is an apocalyptic number.

809222 is a deficient number, since it is larger than the sum of its proper divisors (409450).

809222 is a wasteful number, since it uses less digits than its factorization.

809222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 809222 is about 899.5676739412. The cubic root of 809222 is about 93.1871208419.

The spelling of 809222 in words is "eight hundred nine thousand, two hundred twenty-two".