6641320 has 32 divisors (see below), whose sum is σ = 17078400. Its totient is φ = 2276928.

The previous prime is 6641291. The next prime is 6641329. The reversal of 6641320 is 231466.

It is a junction number, because it is equal to n+sod(n) for n = 6641291 and 6641300.

It is not an unprimeable number, because it can be changed into a prime (6641329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11580 + ... + 12139.

It is an arithmetic number, because the mean of its divisors is an integer number (533700).

Almost surely, 2^6641320 is an apocalyptic number.

It is an amenable number.

6641320 is an abundant number, since it is smaller than the sum of its proper divisors (10437080).

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

6641320 is a wasteful number, since it uses less digits than its factorization.

6641320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23737 (or 23733 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 6641320 is about 2577.0758622904. The cubic root of 6641320 is about 187.9683815847.

Adding to 6641320 its reverse (231466), we get a palindrome (6872786).

The spelling of 6641320 in words is "six million, six hundred forty-one thousand, three hundred twenty".