Multipling 7864320 by its sum of digits (30), we get a square (235929600 = 153602).
7864320 divided by its sum of digits (30) gives a 18-th power (262144 = 218).
It is a Jordan-Polya number, since it can be written as 5! ⋅ (2!)16.
It is a tau number, because it is divible by the number of its divisors (80).
It is a d-powerful number, because it can be written as 78 + 87 + 62 + 42 + 37 + 27 + 0 .
It is a nialpdrome in base 2.
It is a zygodrome in base 2.
It is a congruent number.
It is an unprimeable number.
In principle, a polygon with 7864320 sides can be constructed with ruler and compass.
Almost surely, 27864320 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 7864320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12582900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7864320 is an frugal number, since it uses more digits than its factorization.
7864320 is an evil number, because the sum of its binary digits is even.
The square root of 7864320 is about 2804.3394944265. The cubic root of 7864320 is about 198.8628803810.
The spelling of 7864320 in words is "seven million, eight hundred sixty-four thousand, three hundred twenty".