6504330 has 64 divisors (see below), whose sum is σ = 18247680. Its totient is φ = 1452864.

The previous prime is 6504269. The next prime is 6504343. The reversal of 6504330 is 334056.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 6504297 and 6504306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9541 + ... + 10199.

It is an arithmetic number, because the mean of its divisors is an integer number (285120).

Almost surely, 2^6504330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6504330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9123840).

6504330 is an abundant number, since it is smaller than the sum of its proper divisors (11743350).

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

6504330 is a wasteful number, since it uses less digits than its factorization.

6504330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 6504330 is about 2550.3587982870. The cubic root of 6504330 is about 186.6669890867. Note that the first 3 decimals are identical.

Adding to 6504330 its reverse (334056), we get a palindrome (6838386).

The spelling of 6504330 in words is "six million, five hundred four thousand, three hundred thirty".