63881298 has 48 divisors (see below), whose sum is σ = 154592256. Its totient is φ = 19653840.

The previous prime is 63881267. The next prime is 63881299. The reversal of 63881298 is 89218836.

63881298 is a `hidden beast` number, since 638 + 8 + 1 + 2 + 9 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (63881299) 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, 1263 + ... + 11373.

It is an arithmetic number, because the mean of its divisors is an integer number (3220672).

Almost surely, 2^63881298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63881298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77296128).

63881298 is an abundant number, since it is smaller than the sum of its proper divisors (90710958).

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

63881298 is a wasteful number, since it uses less digits than its factorization.

63881298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10141 (or 10129 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 63881298 is about 7992.5776818246. The cubic root of 63881298 is about 399.7525511209.

The spelling of 63881298 in words is "sixty-three million, eight hundred eighty-one thousand, two hundred ninety-eight".