8404845 has 16 divisors (see below), whose sum is σ = 13677120. Its totient is φ = 4406144.

The previous prime is 8404819. The next prime is 8404849. The reversal of 8404845 is 5484048.

8404845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8404845 - 2⁷ = 8404717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8404849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3864 + ... + 5633.

It is an arithmetic number, because the mean of its divisors is an integer number (854820).

Almost surely, 2^8404845 is an apocalyptic number.

It is an amenable number.

8404845 is a deficient number, since it is larger than the sum of its proper divisors (5272275).

8404845 is a wasteful number, since it uses less digits than its factorization.

8404845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9564.

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

The square root of 8404845 is about 2899.1110706560. Note that the first 3 decimals coincide. The cubic root of 8404845 is about 203.3183467111.

The spelling of 8404845 in words is "eight million, four hundred four thousand, eight hundred forty-five".