7504 is nontrivially palindromic in base 13.
It is a plaindrome in base 9.
It is a congruent number.
7504 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
27504 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 7504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7504 is a wasteful number, since it uses less digits than its factorization.
7504 is an evil number, because the sum of its binary digits is even.
The square root of 7504 is about 86.6256313108. The cubic root of 7504 is about 19.5778174697.
The spelling of 7504 in words is "seven thousand, five hundred four".