845601 has 4 divisors (see below), whose sum is σ = 1127472. Its totient is φ = 563732.

The previous prime is 845599. The next prime is 845623. The reversal of 845601 is 106548.

845601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 845601 - 2¹ = 845599 is a prime.

It is an Ulam number.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (840601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140931 + ... + 140936.

It is an arithmetic number, because the mean of its divisors is an integer number (281868).

2⁸⁴⁵⁶⁰¹ is an apocalyptic number.

It is an amenable number.

845601 is a deficient number, since it is larger than the sum of its proper divisors (281871).

845601 is a wasteful number, since it uses less digits than its factorization.

845601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281870.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 845601 is about 919.5656583409. The cubic root of 845601 is about 94.5631279439.

The spelling of 845601 in words is "eight hundred forty-five thousand, six hundred one".