63871002 has 48 divisors (see below), whose sum is σ = 149604000. Its totient is φ = 19577376.

The previous prime is 63870997. The next prime is 63871009. The reversal of 63871002 is 20017836.

63871002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (63871009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116493 + ... + 117039.

It is an arithmetic number, because the mean of its divisors is an integer number (3116750).

Almost surely, 2^63871002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63871002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74802000).

63871002 is an abundant number, since it is smaller than the sum of its proper divisors (85732998).

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

63871002 is a wasteful number, since it uses less digits than its factorization.

63871002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 63871002 is about 7991.9335582824. The cubic root of 63871002 is about 399.7310734034.

Adding to 63871002 its reverse (20017836), we get a palindrome (83888838).

The spelling of 63871002 in words is "sixty-three million, eight hundred seventy-one thousand, two".