6641814 has 16 divisors (see below), whose sum is σ = 13317120. Its totient is φ = 2208360.

The previous prime is 6641813. The next prime is 6641821. The reversal of 6641814 is 4181466.

It is a super-2 number, since 2×6641814² = 88227386421192, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641813) 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, 1719 + ... + 4029.

It is an arithmetic number, because the mean of its divisors is an integer number (832320).

Almost surely, 2^6641814 is an apocalyptic number.

6641814 is an abundant number, since it is smaller than the sum of its proper divisors (6675306).

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

6641814 is a wasteful number, since it uses less digits than its factorization.

6641814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795.

The product of its digits is 4608, while the sum is 30.

The square root of 6641814 is about 2577.1717055718. The cubic root of 6641814 is about 187.9730420075.

The spelling of 6641814 in words is "six million, six hundred forty-one thousand, eight hundred fourteen".