63859456 has 54 divisors (see below), whose sum is σ = 134726172. Its totient is φ = 30205440.

The previous prime is 63859409. The next prime is 63859469. The reversal of 63859456 is 65495836.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92071 + ... + 92761.

Almost surely, 2^63859456 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 63859456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67363086).

63859456 is an abundant number, since it is smaller than the sum of its proper divisors (70866716).

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

63859456 is an equidigital number, since it uses as much as digits as its factorization.

63859456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 712 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The square root of 63859456 is about 7991.2111722817. The cubic root of 63859456 is about 399.7069854085.

The spelling of 63859456 in words is "sixty-three million, eight hundred fifty-nine thousand, four hundred fifty-six".