7200864 has 72 divisors (see below), whose sum is σ = 22348872. Its totient is φ = 2181120.

The previous prime is 7200859. The next prime is 7200887. The reversal of 7200864 is 4680027.

It is a tau number, because it is divible by the number of its divisors (72).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2032 + ... + 4304.

It is an arithmetic number, because the mean of its divisors is an integer number (310401).

Almost surely, 2^7200864 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 7200864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11174436).

7200864 is an abundant number, since it is smaller than the sum of its proper divisors (15148008).

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

7200864 is a wasteful number, since it uses less digits than its factorization.

7200864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300 (or 2289 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 7200864 is about 2683.4425650645. The cubic root of 7200864 is about 193.1056005273.

The spelling of 7200864 in words is "seven million, two hundred thousand, eight hundred sixty-four".