8505450 has 72 divisors (see below), whose sum is σ = 23459436. Its totient is φ = 2208000.

The previous prime is 8505433. The next prime is 8505451. The reversal of 8505450 is 545058.

It can be written as a sum of positive squares in 6 ways, for example, as 603729 + 7901721 = 777^2 + 2811^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (8505451) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18220 + ... + 18680.

Almost surely, 2^8505450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8505450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11729718).

8505450 is an abundant number, since it is smaller than the sum of its proper divisors (14953986).

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

8505450 is a wasteful number, since it uses less digits than its factorization.

8505450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 8505450 is about 2916.4104649380. The cubic root of 8505450 is about 204.1263634638.

The spelling of 8505450 in words is "eight million, five hundred five thousand, four hundred fifty".