63654289 has 2 divisors, whose sum is σ = 63654290. Its totient is φ = 63654288.

The previous prime is 63654287. The next prime is 63654299. The reversal of 63654289 is 98245636.

63654289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53363025 + 10291264 = 7305^2 + 3208^2 .

It is a cyclic number.

It is not a de Polignac number, because 63654289 - 2¹ = 63654287 is a prime.

Together with 63654287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (63654287) 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, 31827144 + 31827145.

It is an arithmetic number, because the mean of its divisors is an integer number (31827145).

Almost surely, 2^63654289 is an apocalyptic number.

It is an amenable number.

63654289 is a deficient number, since it is larger than the sum of its proper divisors (1).

63654289 is an equidigital number, since it uses as much as digits as its factorization.

63654289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 43.

The square root of 63654289 is about 7978.3638046908. The cubic root of 63654289 is about 399.2784680115.

The spelling of 63654289 in words is "sixty-three million, six hundred fifty-four thousand, two hundred eighty-nine".