6520838 has 16 divisors (see below), whose sum is σ = 10371120. Its totient is φ = 3066336.

The previous prime is 6520837. The next prime is 6520847. The reversal of 6520838 is 8380256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5420 + ... + 6512.

It is an arithmetic number, because the mean of its divisors is an integer number (648195).

Almost surely, 2^6520838 is an apocalyptic number.

6520838 is a deficient number, since it is larger than the sum of its proper divisors (3850282).

6520838 is a wasteful number, since it uses less digits than its factorization.

6520838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 6520838 is about 2553.5931547527. The cubic root of 6520838 is about 186.8247760469.

The spelling of 6520838 in words is "six million, five hundred twenty thousand, eight hundred thirty-eight".