6520930 has 32 divisors (see below), whose sum is σ = 12789504. Its totient is φ = 2379456.

The previous prime is 6520919. The next prime is 6520939. The reversal of 6520930 is 390256.

It is a junction number, because it is equal to n+sod(n) for n = 6520895 and 6520904.

It is not an unprimeable number, because it can be changed into a prime (6520939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13147 + ... + 13633.

It is an arithmetic number, because the mean of its divisors is an integer number (399672).

Almost surely, 2^6520930 is an apocalyptic number.

6520930 is a deficient number, since it is larger than the sum of its proper divisors (6268574).

6520930 is a wasteful number, since it uses less digits than its factorization.

6520930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 6520930 is about 2553.6111685219. The cubic root of 6520930 is about 186.8256546558.

The spelling of 6520930 in words is "six million, five hundred twenty thousand, nine hundred thirty".