6650864 has 80 divisors (see below), whose sum is σ = 15427584. Its totient is φ = 2745600.

The previous prime is 6650849. The next prime is 6650867. The reversal of 6650864 is 4680566.

6650864 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125462 + ... + 125514.

Almost surely, 2^6650864 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 6650864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7713792).

6650864 is an abundant number, since it is smaller than the sum of its proper divisors (8776720).

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

6650864 is a wasteful number, since it uses less digits than its factorization.

6650864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 6650864 is about 2578.9269086192. The cubic root of 6650864 is about 188.0583793346.

The spelling of 6650864 in words is "six million, six hundred fifty thousand, eight hundred sixty-four".