63898560 has 168 divisors, whose sum is σ = 239883696. Its totient is φ = 15482880.

The previous prime is 63898553. The next prime is 63898561. The reversal of 63898560 is 6589836.

63898560 is a `hidden beast` number, since 6 + 3 + 89 + 8 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63898561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30672 + ... + 32688.

Almost surely, 2^63898560 is an apocalyptic number.

63898560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63898560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119941848).

63898560 is an abundant number, since it is smaller than the sum of its proper divisors (175985136).

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

63898560 is a wasteful number, since it uses less digits than its factorization.

63898560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 63898560 is about 7993.6574857821. The cubic root of 63898560 is about 399.7885549138.

The spelling of 63898560 in words is "sixty-three million, eight hundred ninety-eight thousand, five hundred sixty".