845212 has 12 divisors (see below), whose sum is σ = 1491336. Its totient is φ = 419120.

The previous prime is 845209. The next prime is 845219. The reversal of 845212 is 212548.

It is a congruent number.

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

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, 283 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (124278).

2⁸⁴⁵²¹² is an apocalyptic number.

It is an amenable number.

845212 is a deficient number, since it is larger than the sum of its proper divisors (646124).

845212 is a wasteful number, since it uses less digits than its factorization.

845212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748 (or 1746 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 845212 is about 919.3541211089. The cubic root of 845212 is about 94.5486251626.

It can be divided in two parts, 8452 and 12, that added together give a square (8464 = 92²).

The spelling of 845212 in words is "eight hundred forty-five thousand, two hundred twelve".