63688163 has 16 divisors (see below), whose sum is σ = 80231424. Its totient is φ = 49109760.

The previous prime is 63688151. The next prime is 63688169. The reversal of 63688163 is 36188636.

It is not a de Polignac number, because 63688163 - 2⁶ = 63688099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63688163.

It is not an unprimeable number, because it can be changed into a prime (63688169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3206 + ... + 11732.

It is an arithmetic number, because the mean of its divisors is an integer number (5014464).

Almost surely, 2^63688163 is an apocalyptic number.

63688163 is a deficient number, since it is larger than the sum of its proper divisors (16543261).

63688163 is a wasteful number, since it uses less digits than its factorization.

63688163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8642.

The product of its digits is 124416, while the sum is 41.

The square root of 63688163 is about 7980.4863886858. The cubic root of 63688163 is about 399.3492815712.

The spelling of 63688163 in words is "sixty-three million, six hundred eighty-eight thousand, one hundred sixty-three".