6643060 has 24 divisors (see below), whose sum is σ = 14030856. Its totient is φ = 2641920.

The previous prime is 6643057. The next prime is 6643069. The reversal of 6643060 is 603466.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 620944 + 6022116 = 788^2 + 2454^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6643069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3000 + ... + 4720.

It is an arithmetic number, because the mean of its divisors is an integer number (584619).

Almost surely, 2^6643060 is an apocalyptic number.

It is an amenable number.

6643060 is an abundant number, since it is smaller than the sum of its proper divisors (7387796).

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

6643060 is a wasteful number, since it uses less digits than its factorization.

6643060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923 (or 1921 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 6643060 is about 2577.4134321059. The cubic root of 6643060 is about 187.9847958128.

The spelling of 6643060 in words is "six million, six hundred forty-three thousand, sixty".