8200845 has 20 divisors (see below), whose sum is σ = 14701500. Its totient is φ = 4373568.

The previous prime is 8200789. The next prime is 8200847. The reversal of 8200845 is 5480028.

8200845 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2683044 + 5517801 = 1638^2 + 2349^2 .

It is not a de Polignac number, because 8200845 - 2⁸ = 8200589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8200847) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9720 + ... + 10529.

It is an arithmetic number, because the mean of its divisors is an integer number (735075).

Almost surely, 2^8200845 is an apocalyptic number.

It is an amenable number.

8200845 is a deficient number, since it is larger than the sum of its proper divisors (6500655).

8200845 is a wasteful number, since it uses less digits than its factorization.

8200845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20266 (or 20257 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 8200845 is about 2863.7117522544. The cubic root of 8200845 is about 201.6598939814.

It can be divided in two parts, 8200 and 845, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 8200845 in words is "eight million, two hundred thousand, eight hundred forty-five".