63538389 has 24 divisors (see below), whose sum is σ = 93350400. Its totient is φ = 41640480.

The previous prime is 63538379. The next prime is 63538427. The reversal of 63538389 is 98383536.

63538389 is a `hidden beast` number, since 635 + 3 + 8 + 3 + 8 + 9 = 666.

63538389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63538389 - 2¹⁷ = 63407317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63538379) 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, 234324 + ... + 234594.

It is an arithmetic number, because the mean of its divisors is an integer number (3889600).

Almost surely, 2^63538389 is an apocalyptic number.

It is an amenable number.

63538389 is a deficient number, since it is larger than the sum of its proper divisors (29812011).

63538389 is a wasteful number, since it uses less digits than its factorization.

63538389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 622 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 63538389 is about 7971.0971014033. The cubic root of 63538389 is about 399.0359889900.

The spelling of 63538389 in words is "sixty-three million, five hundred thirty-eight thousand, three hundred eighty-nine".