63608197 has 4 divisors (see below), whose sum is σ = 63634636. Its totient is φ = 63581760.

The previous prime is 63608191. The next prime is 63608201. The reversal of 63608197 is 79180636.

63608197 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 14032516 + 49575681 = 3746^2 + 7041^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63608197 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 (63608191) 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, 9204 + ... + 14557.

It is an arithmetic number, because the mean of its divisors is an integer number (15908659).

Almost surely, 2^63608197 is an apocalyptic number.

It is an amenable number.

63608197 is a deficient number, since it is larger than the sum of its proper divisors (26439).

63608197 is a wasteful number, since it uses less digits than its factorization.

63608197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26438.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 63608197 is about 7975.4747194133. The cubic root of 63608197 is about 399.1820723760.

The spelling of 63608197 in words is "sixty-three million, six hundred eight thousand, one hundred ninety-seven".