63894168 has 144 divisors (see below), whose sum is σ = 192699000. Its totient is φ = 19109376.

The previous prime is 63894167. The next prime is 63894179. The reversal of 63894168 is 86149836.

63894168 is a `hidden beast` number, since 638 + 9 + 4 + 1 + 6 + 8 = 666.

It is a super-3 number, since 3×63894168³ (a number of 24 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63894167) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 717868 + ... + 717956.

Almost surely, 2^63894168 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 63894168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96349500).

63894168 is an abundant number, since it is smaller than the sum of its proper divisors (128804832).

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

63894168 is a wasteful number, since it uses less digits than its factorization.

63894168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 166 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 63894168 is about 7993.3827632611. The cubic root of 63894168 is about 399.7793950226.

The spelling of 63894168 in words is "sixty-three million, eight hundred ninety-four thousand, one hundred sixty-eight".