6520734 has 24 divisors (see below), whose sum is σ = 15413112. Its totient is φ = 1975920.

The previous prime is 6520727. The next prime is 6520747. The reversal of 6520734 is 4370256.

It is a happy number.

6520734 is a `hidden beast` number, since 652 + 0 + 7 + 3 + 4 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6520698 and 6520707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16269 + ... + 16664.

It is an arithmetic number, because the mean of its divisors is an integer number (642213).

Almost surely, 2^6520734 is an apocalyptic number.

6520734 is an abundant number, since it is smaller than the sum of its proper divisors (8892378).

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

6520734 is a wasteful number, since it uses less digits than its factorization.

6520734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32952 (or 32949 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 6520734 is about 2553.5727912084. The cubic root of 6520734 is about 186.8237828269.

The spelling of 6520734 in words is "six million, five hundred twenty thousand, seven hundred thirty-four".