6530784 has 48 divisors (see below), whose sum is σ = 18465552. Its totient is φ = 2009088.

The previous prime is 6530779. The next prime is 6530789. The reversal of 6530784 is 4870356.

It is an interprime number because it is at equal distance from previous prime (6530779) and next prime (6530789).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×6530784² = 85302279309312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6530789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1369 + ... + 3864.

It is an arithmetic number, because the mean of its divisors is an integer number (384699).

Almost surely, 2^6530784 is an apocalyptic number.

It is an amenable number.

6530784 is an abundant number, since it is smaller than the sum of its proper divisors (11934768).

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

6530784 is a wasteful number, since it uses less digits than its factorization.

6530784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5259 (or 5251 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 6530784 is about 2555.5398646861. The cubic root of 6530784 is about 186.9197135020.

The spelling of 6530784 in words is "six million, five hundred thirty thousand, seven hundred eighty-four".