63643201 has 2 divisors, whose sum is σ = 63643202. Its totient is φ = 63643200.

The previous prime is 63643171. The next prime is 63643207. The reversal of 63643201 is 10234636.

63643201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62964225 + 678976 = 7935^2 + 824^2 .

It is a cyclic number.

It is not a de Polignac number, because 63643201 - 2⁵ = 63643169 is a prime.

It is not a weakly prime, because it can be changed into another prime (63643207) 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 as a sum of consecutive naturals, namely, 31821600 + 31821601.

It is an arithmetic number, because the mean of its divisors is an integer number (31821601).

Almost surely, 2^63643201 is an apocalyptic number.

It is an amenable number.

63643201 is a deficient number, since it is larger than the sum of its proper divisors (1).

63643201 is an equidigital number, since it uses as much as digits as its factorization.

63643201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 63643201 is about 7977.6688951096. The cubic root of 63643201 is about 399.2552831023.

Adding to 63643201 its reverse (10234636), we get a palindrome (73877837).

The spelling of 63643201 in words is "sixty-three million, six hundred forty-three thousand, two hundred one".