6641672 has 16 divisors (see below), whose sum is σ = 12757500. Its totient is φ = 3239680.

The previous prime is 6641671. The next prime is 6641681. The reversal of 6641672 is 2761466.

It can be written as a sum of positive squares in 2 ways, for example, as 5692996 + 948676 = 2386^2 + 974^2 .

It is a super-2 number, since 2×6641672² = 88223613911168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9797 + ... + 10452.

Almost surely, 2^6641672 is an apocalyptic number.

It is an amenable number.

6641672 is a deficient number, since it is larger than the sum of its proper divisors (6115828).

6641672 is a wasteful number, since it uses less digits than its factorization.

6641672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20296 (or 20292 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 6641672 is about 2577.1441558438. The cubic root of 6641672 is about 187.9717023955.

The spelling of 6641672 in words is "six million, six hundred forty-one thousand, six hundred seventy-two".