845484 has 12 divisors (see below), whose sum is σ = 1972824. Its totient is φ = 281824.

The previous prime is 845459. The next prime is 845489. The reversal of 845484 is 484548.

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 845484.

It is not an unprimeable number, because it can be changed into a prime (845489) 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, 35217 + ... + 35240.

It is an arithmetic number, because the mean of its divisors is an integer number (164402).

2⁸⁴⁵⁴⁸⁴ is an apocalyptic number.

It is an amenable number.

845484 is an abundant number, since it is smaller than the sum of its proper divisors (1127340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

845484 is a wasteful number, since it uses less digits than its factorization.

845484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70464 (or 70462 counting only the distinct ones).

The product of its digits is 20480, while the sum is 33.

The square root of 845484 is about 919.5020391495. The cubic root of 845484 is about 94.5587663926.

Multiplying 845484 by its sum of digits (33), we get a palindrome (27900972).

The spelling of 845484 in words is "eight hundred forty-five thousand, four hundred eighty-four".