8450000 has 90 divisors (see below), whose sum is σ = 22158738. Its totient is φ = 3120000.

The previous prime is 8449999. The next prime is 8450009. The reversal of 8450000 is 548.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 9 ways, for example, as 7441984 + 1008016 = 2728^2 + 1004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8450009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 649994 + ... + 650006.

Almost surely, 2^8450000 is an apocalyptic number.

8450000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11079369).

8450000 is an abundant number, since it is smaller than the sum of its proper divisors (13708738).

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

8450000 is an equidigital number, since it uses as much as digits as its factorization.

8450000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 8450000 is about 2906.8883707497. Note that the first 3 decimals coincide. The cubic root of 8450000 is about 203.6818056248.

Adding to 8450000 its reverse (548), we get a palindrome (8450548).

The spelling of 8450000 in words is "eight million, four hundred fifty thousand".