6641600 has 84 divisors (see below), whose sum is σ = 18708624. Its totient is φ = 2273280.

The previous prime is 6641587. The next prime is 6641633. The reversal of 6641600 is 61466.

It is a super-2 number, since 2×6641600² = 88221701120000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10904 + ... + 11496.

Almost surely, 2^6641600 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6641600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9354312).

6641600 is an abundant number, since it is smaller than the sum of its proper divisors (12067024).

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

6641600 is a wasteful number, since it uses less digits than its factorization.

6641600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 6641600 is about 2577.1301868551. The cubic root of 6641600 is about 187.9710231483.

The spelling of 6641600 in words is "six million, six hundred forty-one thousand, six hundred".