8464820 has 48 divisors (see below), whose sum is σ = 21883008. Its totient is φ = 2678400.

The previous prime is 8464817. The next prime is 8464837. The reversal of 8464820 is 284648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506 + ... + 4145.

It is an arithmetic number, because the mean of its divisors is an integer number (455896).

Almost surely, 2^8464820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8464820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10941504).

8464820 is an abundant number, since it is smaller than the sum of its proper divisors (13418188).

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

8464820 is a wasteful number, since it uses less digits than its factorization.

8464820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4680 (or 4678 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 8464820 is about 2909.4363715332. The cubic root of 8464820 is about 203.8008115963.

The spelling of 8464820 in words is "eight million, four hundred sixty-four thousand, eight hundred twenty".