6620530 has 32 divisors (see below), whose sum is σ = 13708800. Its totient is φ = 2255040.

The previous prime is 6620519. The next prime is 6620587. The reversal of 6620530 is 350266.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18796 + ... + 19144.

It is an arithmetic number, because the mean of its divisors is an integer number (428400).

Almost surely, 2^6620530 is an apocalyptic number.

6620530 is an abundant number, since it is smaller than the sum of its proper divisors (7088270).

6620530 is a wasteful number, since it uses less digits than its factorization.

6620530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 6620530 is about 2573.0390591672. The cubic root of 6620530 is about 187.7720377110.

Adding to 6620530 its reverse (350266), we get a palindrome (6970796).

The spelling of 6620530 in words is "six million, six hundred twenty thousand, five hundred thirty".