63886816 has 96 divisors (see below), whose sum is σ = 160392960. Its totient is φ = 24385536.

The previous prime is 63886813. The next prime is 63886817. The reversal of 63886816 is 61868836.

It is a happy number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63886813) 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, 71911 + ... + 72793.

It is an arithmetic number, because the mean of its divisors is an integer number (1670760).

Almost surely, 2^63886816 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 63886816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80196480).

63886816 is an abundant number, since it is smaller than the sum of its proper divisors (96506144).

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

63886816 is a wasteful number, since it uses less digits than its factorization.

63886816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 928 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 63886816 is about 7992.9228696391. The cubic root of 63886816 is about 399.7640608592.

The spelling of 63886816 in words is "sixty-three million, eight hundred eighty-six thousand, eight hundred sixteen".