63438853 has 16 divisors (see below), whose sum is σ = 70156800. Its totient is φ = 57095280.

The previous prime is 63438839. The next prime is 63438877. The reversal of 63438853 is 35883436.

It is a cyclic number.

It is not a de Polignac number, because 63438853 - 2⁵ = 63438821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63438553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77818 + ... + 78628.

It is an arithmetic number, because the mean of its divisors is an integer number (4384800).

Almost surely, 2^63438853 is an apocalyptic number.

It is an amenable number.

63438853 is a deficient number, since it is larger than the sum of its proper divisors (6717947).

63438853 is a wasteful number, since it uses less digits than its factorization.

63438853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032.

The product of its digits is 207360, while the sum is 40.

The square root of 63438853 is about 7964.8510971643. The cubic root of 63438853 is about 398.8275102777.

The spelling of 63438853 in words is "sixty-three million, four hundred thirty-eight thousand, eight hundred fifty-three".