845218 has 16 divisors (see below), whose sum is σ = 1400256. Its totient is φ = 379440.

The previous prime is 845209. The next prime is 845219. The reversal of 845218 is 812548.

845218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (845219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2080 + ... + 2452.

It is an arithmetic number, because the mean of its divisors is an integer number (87516).

2⁸⁴⁵²¹⁸ is an apocalyptic number.

845218 is a deficient number, since it is larger than the sum of its proper divisors (555038).

845218 is a wasteful number, since it uses less digits than its factorization.

845218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489.

The product of its digits is 2560, while the sum is 28.

The square root of 845218 is about 919.3573842636. The cubic root of 845218 is about 94.5488488897.

The spelling of 845218 in words is "eight hundred forty-five thousand, two hundred eighteen".