6504428 has 24 divisors (see below), whose sum is σ = 13077792. Its totient is φ = 2772864.

The previous prime is 6504419. The next prime is 6504457. The reversal of 6504428 is 8244056.

It is a self number, because there is not a number n which added to its sum of digits gives 6504428.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6026 + ... + 7022.

It is an arithmetic number, because the mean of its divisors is an integer number (544908).

Almost surely, 2^6504428 is an apocalyptic number.

It is an amenable number.

6504428 is an abundant number, since it is smaller than the sum of its proper divisors (6573364).

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

6504428 is a wasteful number, since it uses less digits than its factorization.

6504428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 6504428 is about 2550.3780111976. The cubic root of 6504428 is about 186.6679265788.

The spelling of 6504428 in words is "six million, five hundred four thousand, four hundred twenty-eight".