6481504 has 24 divisors (see below), whose sum is σ = 12980520. Its totient is φ = 3184896.

The previous prime is 6481499. The next prime is 6481543. The reversal of 6481504 is 4051846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172 + ... + 3604.

It is an arithmetic number, because the mean of its divisors is an integer number (540855).

Almost surely, 2^6481504 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 6481504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6490260).

6481504 is an abundant number, since it is smaller than the sum of its proper divisors (6499016).

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

6481504 is a wasteful number, since it uses less digits than its factorization.

6481504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502 (or 3494 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 6481504 is about 2545.8798086320. The cubic root of 6481504 is about 186.4483729380.

The spelling of 6481504 in words is "six million, four hundred eighty-one thousand, five hundred four".