63898688 has 112 divisors (see below), whose sum is σ = 154497024. Its totient is φ = 25643520.

The previous prime is 63898663. The next prime is 63898693. The reversal of 63898688 is 88689836.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 597131 + ... + 597237.

Almost surely, 2^63898688 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 63898688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77248512).

63898688 is an abundant number, since it is smaller than the sum of its proper divisors (90598336).

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

63898688 is a wasteful number, since it uses less digits than its factorization.

63898688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 190 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 56.

The square root of 63898688 is about 7993.6654921256. The cubic root of 63898688 is about 399.7888218624.

The spelling of 63898688 in words is "sixty-three million, eight hundred ninety-eight thousand, six hundred eighty-eight".