845625 has 40 divisors (see below), whose sum is σ = 1574496. Its totient is φ = 400000.

The previous prime is 845623. The next prime is 845653. The reversal of 845625 is 526548.

It is not a de Polignac number, because 845625 - 2¹ = 845623 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

Its product of digits (9600) is a multiple of the sum of its prime divisors (60).

It is a junction number, because it is equal to n+sod(n) for n = 845592 and 845601.

It is not an unprimeable number, because it can be changed into a prime (845623) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20605 + ... + 20645.

2⁸⁴⁵⁶²⁵ is an apocalyptic number.

It is an amenable number.

845625 is a deficient number, since it is larger than the sum of its proper divisors (728871).

845625 is a wasteful number, since it uses less digits than its factorization.

845625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 60 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 845625 is about 919.5787078875. The cubic root of 845625 is about 94.5640225713.

The spelling of 845625 in words is "eight hundred forty-five thousand, six hundred twenty-five".