6435648 has 42 divisors (see below), whose sum is σ = 18448274. Its totient is φ = 2145024.

The previous prime is 6435643. The next prime is 6435691. The reversal of 6435648 is 8465346.

6435648 is a `hidden beast` number, since 6 + 4 + 3 + 5 + 648 = 666.

6435648 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5419584 + 1016064 = 2328^2 + 1008^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 6⁵ + 4⁴ + 3⁵ + 5⁹ + 6⁷ + 4¹¹ + 8 .

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6435643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5011 + ... + 6162.

Almost surely, 2^6435648 is an apocalyptic number.

It is an amenable number.

6435648 is an abundant number, since it is smaller than the sum of its proper divisors (12012626).

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

6435648 is a wasteful number, since it uses less digits than its factorization.

6435648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11191 (or 11178 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 6435648 is about 2536.8578990554. The cubic root of 6435648 is about 186.0076306269.

The spelling of 6435648 in words is "six million, four hundred thirty-five thousand, six hundred forty-eight".