845222 has 8 divisors (see below), whose sum is σ = 1448976. Its totient is φ = 362232.

The previous prime is 845219. The next prime is 845231. The reversal of 845222 is 222548.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30173 + ... + 30200.

It is an arithmetic number, because the mean of its divisors is an integer number (181122).

2⁸⁴⁵²²² is an apocalyptic number.

845222 is a deficient number, since it is larger than the sum of its proper divisors (603754).

845222 is a wasteful number, since it uses less digits than its factorization.

845222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60382.

The product of its digits is 1280, while the sum is 23.

The square root of 845222 is about 919.3595596936. The cubic root of 845222 is about 94.5489980405.

The spelling of 845222 in words is "eight hundred forty-five thousand, two hundred twenty-two".