63856896 has 144 divisors (see below), whose sum is σ = 185137344. Its totient is φ = 19464192.

The previous prime is 63856889. The next prime is 63856907. The reversal of 63856896 is 69865836.

It is a Harshad number since it is a multiple of its sum of digits (51).

Its product of digits (1866240) is a multiple of the sum of its prime divisors (162).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874716 + ... + 874788.

It is an arithmetic number, because the mean of its divisors is an integer number (1285676).

Almost surely, 2^63856896 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 63856896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92568672).

63856896 is an abundant number, since it is smaller than the sum of its proper divisors (121280448).

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

63856896 is a wasteful number, since it uses less digits than its factorization.

63856896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 162 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The square root of 63856896 is about 7991.0509947065. The cubic root of 63856896 is about 399.7016441815.

The spelling of 63856896 in words is "sixty-three million, eight hundred fifty-six thousand, eight hundred ninety-six".