63838853 has 4 divisors (see below), whose sum is σ = 68749548. Its totient is φ = 58928160.

The previous prime is 63838847. The next prime is 63838861. The reversal of 63838853 is 35883836.

It is a happy number.

63838853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44063044 + 19775809 = 6638^2 + 4447^2 .

It is a cyclic number.

It is not a de Polignac number, because 63838853 - 2¹⁴ = 63822469 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 (63838813) 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, 2455328 + ... + 2455353.

It is an arithmetic number, because the mean of its divisors is an integer number (17187387).

Almost surely, 2^63838853 is an apocalyptic number.

It is an amenable number.

63838853 is a deficient number, since it is larger than the sum of its proper divisors (4910695).

63838853 is a wasteful number, since it uses less digits than its factorization.

63838853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910694.

The product of its digits is 414720, while the sum is 44.

The square root of 63838853 is about 7989.9219645751. The cubic root of 63838853 is about 399.6639949138.

The spelling of 63838853 in words is "sixty-three million, eight hundred thirty-eight thousand, eight hundred fifty-three".