6641370 has 48 divisors (see below), whose sum is σ = 17451720. Its totient is φ = 1752192.

The previous prime is 6641359. The next prime is 6641381. The reversal of 6641370 is 731466.

It is an interprime number because it is at equal distance from previous prime (6641359) and next prime (6641381).

It can be written as a sum of positive squares in 4 ways, for example, as 6640929 + 441 = 2577^2 + 21^2 .

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9472 + ... + 10148.

Almost surely, 2^6641370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6641370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8725860).

6641370 is an abundant number, since it is smaller than the sum of its proper divisors (10810350).

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

6641370 is a wasteful number, since it uses less digits than its factorization.

6641370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 6641370 is about 2577.0855631895. The cubic root of 6641370 is about 187.9688532979.

The spelling of 6641370 in words is "six million, six hundred forty-one thousand, three hundred seventy".