8664450 has 48 divisors (see below), whose sum is σ = 21962880. Its totient is φ = 2259520.

The previous prime is 8664433. The next prime is 8664451. The reversal of 8664450 is 544668.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8664451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6436 + ... + 7664.

It is an arithmetic number, because the mean of its divisors is an integer number (457560).

Almost surely, 2^8664450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8664450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10981440).

8664450 is an abundant number, since it is smaller than the sum of its proper divisors (13298430).

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

8664450 is a wasteful number, since it uses less digits than its factorization.

8664450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291 (or 1286 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 8664450 is about 2943.5437825859. The cubic root of 8664450 is about 205.3904910826.

The spelling of 8664450 in words is "eight million, six hundred sixty-four thousand, four hundred fifty".