845224 has 8 divisors (see below), whose sum is σ = 1584810. Its totient is φ = 422608.

The previous prime is 845219. The next prime is 845231. The reversal of 845224 is 422548.

It is a happy number.

845224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 842724 + 2500 = 918^2 + 50^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×845224² = 1428807220352, which contains 22 as substring.

It is an unprimeable number.

845224 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52819 + ... + 52834.

2⁸⁴⁵²²⁴ is an apocalyptic number.

It is an amenable number.

845224 is a deficient number, since it is larger than the sum of its proper divisors (739586).

845224 is a wasteful number, since it uses less digits than its factorization.

845224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105659 (or 105655 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 845224 is about 919.3606474067. The cubic root of 845224 is about 94.5490726157.

The spelling of 845224 in words is "eight hundred forty-five thousand, two hundred twenty-four".