6620946 has 16 divisors (see below), whose sum is σ = 13366944. Its totient is φ = 2186144.

The previous prime is 6620927. The next prime is 6620947. The reversal of 6620946 is 6490266.

It is not an unprimeable number, because it can be changed into a prime (6620947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4515 + ... + 5798.

It is an arithmetic number, because the mean of its divisors is an integer number (835434).

Almost surely, 2^6620946 is an apocalyptic number.

6620946 is an abundant number, since it is smaller than the sum of its proper divisors (6745998).

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

6620946 is a wasteful number, since it uses less digits than its factorization.

6620946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10425.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 6620946 is about 2573.1198961572. The cubic root of 6620946 is about 187.7759705044.

It can be divided in two parts, 66 and 20946, that added together give a palindrome (21012).

The spelling of 6620946 in words is "six million, six hundred twenty thousand, nine hundred forty-six".