6463856 has 20 divisors (see below), whose sum is σ = 14313072. Its totient is φ = 2770176.

The previous prime is 6463837. The next prime is 6463871. The reversal of 6463856 is 6583646.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28745 + ... + 28968.

Almost surely, 2^6463856 is an apocalyptic number.

It is an amenable number.

6463856 is an abundant number, since it is smaller than the sum of its proper divisors (7849216).

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

6463856 is a wasteful number, since it uses less digits than its factorization.

6463856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57728 (or 57722 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 6463856 is about 2542.4114537187. The cubic root of 6463856 is about 186.2789970317.

The spelling of 6463856 in words is "six million, four hundred sixty-three thousand, eight hundred fifty-six".