845004 has 24 divisors (see below), whose sum is σ = 2003008. Its totient is φ = 277200.

The previous prime is 845003. The next prime is 845017. The reversal of 845004 is 400548.

845004 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 (845003) 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, 279 + ... + 1329.

2⁸⁴⁵⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

845004 is an abundant number, since it is smaller than the sum of its proper divisors (1158004).

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

845004 is a wasteful number, since it uses less digits than its factorization.

845004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 845004 is about 919.2409912531. The cubic root of 845004 is about 94.5408686363.

The spelling of 845004 in words is "eight hundred forty-five thousand, four".