6730520 has 16 divisors (see below), whose sum is σ = 15143760. Its totient is φ = 2692192.

The previous prime is 6730501. The next prime is 6730531. The reversal of 6730520 is 250376.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 84092 + ... + 84171.

It is an arithmetic number, because the mean of its divisors is an integer number (946485).

Almost surely, 2^6730520 is an apocalyptic number.

It is an amenable number.

6730520 is an abundant number, since it is smaller than the sum of its proper divisors (8413240).

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

6730520 is a wasteful number, since it uses less digits than its factorization.

6730520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168274 (or 168270 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 6730520 is about 2594.3245749135. The cubic root of 6730520 is about 188.8061803732.

Adding to 6730520 its reverse (250376), we get a palindrome (6980896).

The spelling of 6730520 in words is "six million, seven hundred thirty thousand, five hundred twenty".