63808138 has 8 divisors (see below), whose sum is σ = 95783040. Its totient is φ = 31880460.

The previous prime is 63808133. The next prime is 63808139. The reversal of 63808138 is 83180836.

63808138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 63808097 and 63808106.

It is not an unprimeable number, because it can be changed into a prime (63808133) 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 3 ways as a sum of consecutive naturals, for example, 8208 + ... + 13963.

It is an arithmetic number, because the mean of its divisors is an integer number (11972880).

Almost surely, 2^63808138 is an apocalyptic number.

63808138 is a deficient number, since it is larger than the sum of its proper divisors (31974902).

63808138 is a wasteful number, since it uses less digits than its factorization.

63808138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23612.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 63808138 is about 7987.9996244366. Note that the first 3 decimals coincide. The cubic root of 63808138 is about 399.5998874082.

It can be divided in two parts, 63 and 808138, that added together give a square (808201 = 899²).

The spelling of 63808138 in words is "sixty-three million, eight hundred eight thousand, one hundred thirty-eight".